diff --git a/mindspore/train/quant/quant_utils.py b/mindspore/train/quant/quant_utils.py
index 7dac5a27b4..12827981d1 100644
--- a/mindspore/train/quant/quant_utils.py
+++ b/mindspore/train/quant/quant_utils.py
@@ -250,3 +250,35 @@ def without_fold_batchnorm(weight, cell_quant):
     weight = weight * _gamma / _sigma
     bias = beta - gamma * mean / sigma
     return weight, bias
+
+
+def load_nonquant_param_into_quant_net(quant_model, params_dict):
+    """
+    load fp32 model parameters to quantization model.
+
+    Args:
+        quant_model: quantization model
+        params_dict: f32 param
+
+    Returns:
+        None
+    """
+    iterable_dict = {
+        'weight': iter([item for item in params_dict.items() if item[0].endswith('weight')]),
+        'bias': iter([item for item in params_dict.items() if item[0].endswith('bias')]),
+        'gamma': iter([item for item in params_dict.items() if item[0].endswith('gamma')]),
+        'beta': iter([item for item in params_dict.items() if item[0].endswith('beta')]),
+        'moving_mean': iter([item for item in params_dict.items() if item[0].endswith('moving_mean')]),
+        'moving_variance': iter(
+            [item for item in params_dict.items() if item[0].endswith('moving_variance')]),
+        'minq': iter([item for item in params_dict.items() if item[0].endswith('minq')]),
+        'maxq': iter([item for item in params_dict.items() if item[0].endswith('maxq')])
+    }
+    for name, param in quant_model.parameters_and_names():
+        key_name = name.split(".")[-1]
+        if key_name not in iterable_dict.keys():
+            raise ValueError(f"Can't find match parameter in ckpt,param name = {name}")
+        value_param = next(iterable_dict[key_name], None)
+        if value_param is not None:
+            param.set_parameter_data(value_param[1].data)
+            print(f'init model param {name} with checkpoint param {value_param[0]}')
diff --git a/mindspore/train/serialization.py b/mindspore/train/serialization.py
index 30795431b5..91f976cb0b 100644
--- a/mindspore/train/serialization.py
+++ b/mindspore/train/serialization.py
@@ -308,6 +308,7 @@ def load_param_into_net(net, parameter_dict):
         logger.debug("%s", param_name)
 
     logger.info("Load parameter into net finish, {} parameters has not been loaded.".format(len(param_not_load)))
+    return param_not_load
 
 
 def _load_dismatch_prefix_params(net, parameter_dict, param_not_load):
diff --git a/model_zoo/official/cv/lenet_quant/Readme.md b/model_zoo/official/cv/lenet_quant/Readme.md
index 2fd3e129a2..9e5e64b48c 100644
--- a/model_zoo/official/cv/lenet_quant/Readme.md
+++ b/model_zoo/official/cv/lenet_quant/Readme.md
@@ -93,65 +93,6 @@ Get the MNIST from scratch dataset.
 ds_train = create_dataset(os.path.join(args.data_path, "train"), 
                           cfg.batch_size, cfg.epoch_size)
 step_size = ds_train.get_dataset_size()
-```
-
-### Train model
-
-Load the Lenet fusion network, training network using loss `nn.SoftmaxCrossEntropyWithLogits` with optimization `nn.Momentum`.
-
-```Python
-# Define the network
-network = LeNet5Fusion(cfg.num_classes)
-# Define the loss
-net_loss = nn.SoftmaxCrossEntropyWithLogits(is_grad=False, sparse=True, reduction="mean")
-# Define optimization
-net_opt = nn.Momentum(network.trainable_params(), cfg.lr, cfg.momentum)
-
-# Define model using loss and optimization.
-time_cb = TimeMonitor(data_size=ds_train.get_dataset_size())
-config_ck = CheckpointConfig(save_checkpoint_steps=cfg.epoch_size * step_size,
-                             keep_checkpoint_max=cfg.keep_checkpoint_max)
-ckpoint_cb = ModelCheckpoint(prefix="checkpoint_lenet", config=config_ck)
-model = Model(network, net_loss, net_opt, metrics={"Accuracy": Accuracy()})
-```
-
-Now we can start training.
-
-```Python
-model.train(cfg['epoch_size'], ds_train, 
-            callbacks=[time_cb, ckpoint_cb, LossMonitor()],
-            dataset_sink_mode=args.dataset_sink_mode)
-```
-
-After all the following we will get the loss value of each step as following:
-
-```bash
->>> Epoch: [  1/ 10] step: [  1/ 900], loss: [2.3040/2.5234], time: [1.300234]
->>> ...
->>> Epoch: [ 9/ 10] step: [887/ 900], loss: [0.0113/0.0223], time: [1.300234]
->>> Epoch: [ 9/ 10] step: [888/ 900], loss: [0.0334/0.0223], time: [1.300234]
->>> Epoch: [ 9/ 10] step: [889/ 900], loss: [0.0233/0.0223], time: [1.300234]
-```
-
-Also, you can just run this command instead.
-
-```python
-python train.py --data_path MNIST_Data --device_target Ascend
-```
-
-### Evaluate fusion model
-
-After training epoch stop. We can get the fusion model checkpoint file like `checkpoint_lenet.ckpt`. Meanwhile, we can evaluate this fusion model.
-
-```python
-python eval.py --data_path MNIST_Data --device_target Ascend --ckpt_path checkpoint_lenet.ckpt
-```
-
-The top1 accuracy would display on shell.
-
-```bash
->>> Accuracy: 98.53.
-```
 
 ## Train quantization aware model
 
diff --git a/model_zoo/official/cv/lenet_quant/eval.py b/model_zoo/official/cv/lenet_quant/eval.py
deleted file mode 100644
index df9a5b123b..0000000000
--- a/model_zoo/official/cv/lenet_quant/eval.py
+++ /dev/null
@@ -1,65 +0,0 @@
-# Copyright 2020 Huawei Technologies Co., Ltd
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ============================================================================
-"""
-######################## eval lenet example ########################
-eval lenet according to model file:
-python eval.py --data_path /YourDataPath --ckpt_path Your.ckpt
-"""
-
-import os
-import argparse
-import mindspore.nn as nn
-from mindspore import context
-from mindspore.train.serialization import load_checkpoint, load_param_into_net
-from mindspore.train import Model
-from mindspore.nn.metrics import Accuracy
-from src.dataset import create_dataset
-from src.config import mnist_cfg as cfg
-from src.lenet_fusion import LeNet5 as LeNet5Fusion
-
-parser = argparse.ArgumentParser(description='MindSpore MNIST Example')
-parser.add_argument('--device_target', type=str, default="Ascend",
-                    choices=['Ascend', 'GPU'],
-                    help='device where the code will be implemented (default: Ascend)')
-parser.add_argument('--data_path', type=str, default="./MNIST_Data",
-                    help='path where the dataset is saved')
-parser.add_argument('--ckpt_path', type=str, default="",
-                    help='if mode is test, must provide path where the trained ckpt file')
-parser.add_argument('--dataset_sink_mode', type=bool, default=True,
-                    help='dataset_sink_mode is False or True')
-args = parser.parse_args()
-
-if __name__ == "__main__":
-    context.set_context(mode=context.GRAPH_MODE, device_target=args.device_target)
-    ds_eval = create_dataset(os.path.join(args.data_path, "test"), cfg.batch_size, 1)
-    step_size = ds_eval.get_dataset_size()
-
-    # define fusion network
-    network = LeNet5Fusion(cfg.num_classes)
-    # define loss
-    net_loss = nn.SoftmaxCrossEntropyWithLogits(is_grad=False, sparse=True, reduction="mean")
-    # define network optimization
-    net_opt = nn.Momentum(network.trainable_params(), cfg.lr, cfg.momentum)
-
-    # call back and monitor
-    model = Model(network, net_loss, net_opt, metrics={"Accuracy": Accuracy()})
-
-    # load check point into network
-    param_dict = load_checkpoint(args.ckpt_path)
-    load_param_into_net(network, param_dict)
-
-    print("============== Starting Testing ==============")
-    acc = model.eval(ds_eval, dataset_sink_mode=args.dataset_sink_mode)
-    print("============== {} ==============".format(acc))
diff --git a/model_zoo/official/cv/lenet_quant/eval_quant.py b/model_zoo/official/cv/lenet_quant/eval_quant.py
index 9f586d9e19..4849d01daf 100644
--- a/model_zoo/official/cv/lenet_quant/eval_quant.py
+++ b/model_zoo/official/cv/lenet_quant/eval_quant.py
@@ -63,7 +63,9 @@ if __name__ == "__main__":
 
     # load quantization aware network checkpoint
     param_dict = load_checkpoint(args.ckpt_path)
-    load_param_into_net(network, param_dict)
+    not_load_param = load_param_into_net(network, param_dict)
+    if not_load_param:
+        raise ValueError("Load param into net fail!")
 
     print("============== Starting Testing ==============")
     acc = model.eval(ds_eval, dataset_sink_mode=args.dataset_sink_mode)
diff --git a/model_zoo/official/cv/lenet_quant/src/lenet.py b/model_zoo/official/cv/lenet_quant/src/lenet.py
deleted file mode 100644
index 18d310c2c7..0000000000
--- a/model_zoo/official/cv/lenet_quant/src/lenet.py
+++ /dev/null
@@ -1,64 +0,0 @@
-# Copyright 2020 Huawei Technologies Co., Ltd
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ============================================================================
-"""LeNet."""
-import mindspore.nn as nn
-
-
-class LeNet5(nn.Cell):
-    """
-    Lenet network
-
-    Args:
-        num_class (int): Num classes. Default: 10.
-
-    Returns:
-        Tensor, output tensor
-    Examples:
-        >>> LeNet(num_class=10)
-
-    """
-
-    def __init__(self, num_class=10, channel=1):
-        super(LeNet5, self).__init__()
-        self.num_class = num_class
-
-        self.conv1 = nn.Conv2d(channel, 6, 5, pad_mode='valid')
-        self.bn1 = nn.BatchNorm2d(6)
-        self.conv2 = nn.Conv2d(6, 16, 5, pad_mode='valid')
-        self.bn2 = nn.BatchNorm2d(16)
-        self.fc1 = nn.Dense(16 * 5 * 5, 120)
-        self.fc2 = nn.Dense(120, 84)
-        self.fc3 = nn.Dense(84, self.num_class)
-
-        self.relu = nn.ReLU()
-        self.max_pool2d = nn.MaxPool2d(kernel_size=2, stride=2)
-        self.flatten = nn.Flatten()
-
-    def construct(self, x):
-        x = self.conv1(x)
-        x = self.bn1(x)
-        x = self.relu(x)
-        x = self.max_pool2d(x)
-        x = self.conv2(x)
-        x = self.bn2(x)
-        x = self.relu(x)
-        x = self.max_pool2d(x)
-        x = self.flatten(x)
-        x = self.fc1(x)
-        x = self.relu(x)
-        x = self.fc2(x)
-        x = self.relu(x)
-        x = self.fc3(x)
-        return x
diff --git a/model_zoo/official/cv/lenet_quant/src/lenet_fusion.py b/model_zoo/official/cv/lenet_quant/src/lenet_fusion.py
index 88b5685218..88b3593502 100644
--- a/model_zoo/official/cv/lenet_quant/src/lenet_fusion.py
+++ b/model_zoo/official/cv/lenet_quant/src/lenet_fusion.py
@@ -36,8 +36,8 @@ class LeNet5(nn.Cell):
         self.num_class = num_class
 
         # change `nn.Conv2d` to `nn.Conv2dBnAct`
-        self.conv1 = nn.Conv2dBnAct(channel, 6, 5, pad_mode='valid', has_bn=True, activation='relu')
-        self.conv2 = nn.Conv2dBnAct(6, 16, 5, pad_mode='valid', has_bn=True, activation='relu')
+        self.conv1 = nn.Conv2dBnAct(channel, 6, 5, pad_mode='valid', activation='relu')
+        self.conv2 = nn.Conv2dBnAct(6, 16, 5, pad_mode='valid', activation='relu')
         # change `nn.Dense` to `nn.DenseBnAct`
         self.fc1 = nn.DenseBnAct(16 * 5 * 5, 120, activation='relu')
         self.fc2 = nn.DenseBnAct(120, 84, activation='relu')
diff --git a/model_zoo/official/cv/lenet_quant/train.py b/model_zoo/official/cv/lenet_quant/train.py
deleted file mode 100644
index 66546b15c0..0000000000
--- a/model_zoo/official/cv/lenet_quant/train.py
+++ /dev/null
@@ -1,68 +0,0 @@
-# Copyright 2020 Huawei Technologies Co., Ltd
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ============================================================================
-"""
-######################## train lenet example ########################
-train lenet and get network model files(.ckpt) :
-python train.py --data_path /YourDataPath
-"""
-
-import os
-import argparse
-import mindspore.nn as nn
-from mindspore import context
-from mindspore.train.callback import ModelCheckpoint, CheckpointConfig
-from mindspore.train import Model
-from mindspore.nn.metrics import Accuracy
-from src.dataset import create_dataset
-from src.config import mnist_cfg as cfg
-from src.lenet_fusion import LeNet5 as LeNet5Fusion
-from src.loss_monitor import LossMonitor
-
-parser = argparse.ArgumentParser(description='MindSpore MNIST Example')
-parser.add_argument('--device_target', type=str, default="Ascend",
-                    choices=['Ascend', 'GPU'],
-                    help='device where the code will be implemented (default: Ascend)')
-parser.add_argument('--data_path', type=str, default="./MNIST_Data",
-                    help='path where the dataset is saved')
-parser.add_argument('--ckpt_path', type=str, default="",
-                    help='if mode is test, must provide path where the trained ckpt file')
-parser.add_argument('--dataset_sink_mode', type=bool, default=True,
-                    help='dataset_sink_mode is False or True')
-args = parser.parse_args()
-
-if __name__ == "__main__":
-    context.set_context(mode=context.GRAPH_MODE, device_target=args.device_target)
-    ds_train = create_dataset(os.path.join(args.data_path, "train"), cfg.batch_size, 1)
-    step_size = ds_train.get_dataset_size()
-
-    # define fusion network
-    network = LeNet5Fusion(cfg.num_classes)
-    # define network loss
-    net_loss = nn.SoftmaxCrossEntropyWithLogits(is_grad=False, sparse=True, reduction="mean")
-    # define network optimization
-    net_opt = nn.Momentum(network.trainable_params(), cfg.lr, cfg.momentum)
-
-    # call back and monitor
-    config_ckpt = CheckpointConfig(save_checkpoint_steps=cfg.epoch_size * step_size,
-                                   keep_checkpoint_max=cfg.keep_checkpoint_max)
-    ckpt_callback = ModelCheckpoint(prefix="checkpoint_lenet", config=config_ckpt)
-
-    # define model
-    model = Model(network, net_loss, net_opt, metrics={"Accuracy": Accuracy()})
-
-    print("============== Starting Training ==============")
-    model.train(cfg['epoch_size'], ds_train, callbacks=[ckpt_callback, LossMonitor()],
-                dataset_sink_mode=args.dataset_sink_mode)
-    print("============== End Training ==============")
diff --git a/model_zoo/official/cv/lenet_quant/train_quant.py b/model_zoo/official/cv/lenet_quant/train_quant.py
index dd6b59a9c8..51d37cc1bf 100644
--- a/model_zoo/official/cv/lenet_quant/train_quant.py
+++ b/model_zoo/official/cv/lenet_quant/train_quant.py
@@ -22,11 +22,12 @@ import os
 import argparse
 import mindspore.nn as nn
 from mindspore import context
-from mindspore.train.serialization import load_checkpoint, load_param_into_net
+from mindspore.train.serialization import load_checkpoint
 from mindspore.train.callback import ModelCheckpoint, CheckpointConfig
 from mindspore.train import Model
 from mindspore.nn.metrics import Accuracy
 from mindspore.train.quant import quant
+from mindspore.train.quant.quant_utils import load_nonquant_param_into_quant_net
 from src.dataset import create_dataset
 from src.config import mnist_cfg as cfg
 from src.lenet_fusion import LeNet5 as LeNet5Fusion
@@ -54,10 +55,11 @@ if __name__ == "__main__":
 
     # load quantization aware network checkpoint
     param_dict = load_checkpoint(args.ckpt_path)
-    load_param_into_net(network, param_dict)
+    load_nonquant_param_into_quant_net(network, param_dict)
 
     # convert fusion network to quantization aware network
-    network = quant.convert_quant_network(network, quant_delay=900, per_channel=[True, False], symmetric=[False, False])
+    network = quant.convert_quant_network(network, quant_delay=900, bn_fold=False, per_channel=[True, False],
+                                          symmetric=[False, False])
 
     # define network loss
     net_loss = nn.SoftmaxCrossEntropyWithLogits(is_grad=False, sparse=True, reduction="mean")
diff --git a/model_zoo/official/cv/mobilenetv2_quant/eval.py b/model_zoo/official/cv/mobilenetv2_quant/eval.py
index cfa873a98d..e6b0875c75 100644
--- a/model_zoo/official/cv/mobilenetv2_quant/eval.py
+++ b/model_zoo/official/cv/mobilenetv2_quant/eval.py
@@ -68,7 +68,9 @@ if __name__ == '__main__':
     # load checkpoint
     if args_opt.checkpoint_path:
         param_dict = load_checkpoint(args_opt.checkpoint_path)
-        load_param_into_net(network, param_dict)
+        not_load_param = load_param_into_net(network, param_dict)
+        if not_load_param:
+            raise ValueError("Load param into net fail!")
     network.set_train(False)
 
     # define model
diff --git a/model_zoo/official/cv/mobilenetv2_quant/src/utils.py b/model_zoo/official/cv/mobilenetv2_quant/src/utils.py
index 33fec74de3..a00ac53349 100644
--- a/model_zoo/official/cv/mobilenetv2_quant/src/utils.py
+++ b/model_zoo/official/cv/mobilenetv2_quant/src/utils.py
@@ -25,39 +25,6 @@ from mindspore.ops import operations as P
 from mindspore.ops import functional as F
 from mindspore.common import dtype as mstype
 
-
-def _load_param_into_net(model, params_dict):
-    """
-    load fp32 model parameters to quantization model.
-
-    Args:
-        model: quantization model
-        params_dict: f32 param
-
-    Returns:
-        None
-    """
-    iterable_dict = {
-        'weight': iter([item for item in params_dict.items() if item[0].endswith('weight')]),
-        'bias': iter([item for item in params_dict.items() if item[0].endswith('bias')]),
-        'gamma': iter([item for item in params_dict.items() if item[0].endswith('gamma')]),
-        'beta': iter([item for item in params_dict.items() if item[0].endswith('beta')]),
-        'moving_mean': iter([item for item in params_dict.items() if item[0].endswith('moving_mean')]),
-        'moving_variance': iter(
-            [item for item in params_dict.items() if item[0].endswith('moving_variance')]),
-        'minq': iter([item for item in params_dict.items() if item[0].endswith('minq')]),
-        'maxq': iter([item for item in params_dict.items() if item[0].endswith('maxq')])
-    }
-    for name, param in model.parameters_and_names():
-        key_name = name.split(".")[-1]
-        if key_name not in iterable_dict.keys():
-            raise ValueError(f"Can't find match parameter in ckpt,param name = {name}")
-        value_param = next(iterable_dict[key_name], None)
-        if value_param is not None:
-            param.set_parameter_data(value_param[1].data)
-            print(f'init model param {name} with checkpoint param {value_param[0]}')
-
-
 class Monitor(Callback):
     """
     Monitor loss and time.
diff --git a/model_zoo/official/cv/mobilenetv2_quant/train.py b/model_zoo/official/cv/mobilenetv2_quant/train.py
index a941d370fc..ebe60996cf 100644
--- a/model_zoo/official/cv/mobilenetv2_quant/train.py
+++ b/model_zoo/official/cv/mobilenetv2_quant/train.py
@@ -28,6 +28,7 @@ from mindspore.train.callback import ModelCheckpoint, CheckpointConfig
 from mindspore.train.serialization import load_checkpoint
 from mindspore.communication.management import init, get_group_size, get_rank
 from mindspore.train.quant import quant
+from mindspore.train.quant.quant_utils import load_nonquant_param_into_quant_net
 import mindspore.dataset.engine as de
 
 from src.dataset import create_dataset
@@ -35,7 +36,6 @@ from src.lr_generator import get_lr
 from src.utils import Monitor, CrossEntropyWithLabelSmooth
 from src.config import config_ascend_quant, config_gpu_quant
 from src.mobilenetV2 import mobilenetV2
-from src.utils import _load_param_into_net
 
 random.seed(1)
 np.random.seed(1)
@@ -101,7 +101,7 @@ def train_on_ascend():
     # load pre trained ckpt
     if args_opt.pre_trained:
         param_dict = load_checkpoint(args_opt.pre_trained)
-        _load_param_into_net(network, param_dict)
+        load_nonquant_param_into_quant_net(network, param_dict)
     # convert fusion network to quantization aware network
     network = quant.convert_quant_network(network,
                                           bn_fold=True,
@@ -163,7 +163,7 @@ def train_on_gpu():
     # resume
     if args_opt.pre_trained:
         param_dict = load_checkpoint(args_opt.pre_trained)
-        _load_param_into_net(network, param_dict)
+        load_nonquant_param_into_quant_net(network, param_dict)
 
     # convert fusion network to quantization aware network
     network = quant.convert_quant_network(network,
diff --git a/model_zoo/official/cv/resnet50_quant/eval.py b/model_zoo/official/cv/resnet50_quant/eval.py
index 481e4bb853..0395e38b60 100755
--- a/model_zoo/official/cv/resnet50_quant/eval.py
+++ b/model_zoo/official/cv/resnet50_quant/eval.py
@@ -20,12 +20,11 @@ import argparse
 from src.config import quant_set, config_quant, config_noquant
 from src.dataset import create_dataset
 from src.crossentropy import CrossEntropy
-from src.utils import _load_param_into_net
 from models.resnet_quant import resnet50_quant
 
 from mindspore import context
 from mindspore.train.model import Model
-from mindspore.train.serialization import load_checkpoint
+from mindspore.train.serialization import load_checkpoint, load_param_into_net
 from mindspore.train.quant import quant
 
 parser = argparse.ArgumentParser(description='Image classification')
@@ -66,7 +65,9 @@ if __name__ == '__main__':
     # load checkpoint
     if args_opt.checkpoint_path:
         param_dict = load_checkpoint(args_opt.checkpoint_path)
-        _load_param_into_net(net, param_dict)
+        not_load_param = load_param_into_net(net, param_dict)
+        if not_load_param:
+            raise ValueError("Load param into net fail!")
     net.set_train(False)
 
     # define model
diff --git a/model_zoo/official/cv/resnet50_quant/src/utils.py b/model_zoo/official/cv/resnet50_quant/src/utils.py
deleted file mode 100644
index 846fd7b894..0000000000
--- a/model_zoo/official/cv/resnet50_quant/src/utils.py
+++ /dev/null
@@ -1,46 +0,0 @@
-# Copyright 2020 Huawei Technologies Co., Ltd
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ============================================================================
-"""utils script"""
-
-def _load_param_into_net(model, params_dict):
-    """
-    load fp32 model parameters to quantization model.
-
-    Args:
-        model: quantization model
-        params_dict: f32 param
-
-    Returns:
-        None
-    """
-    iterable_dict = {
-        'weight': iter([item for item in params_dict.items() if item[0].endswith('weight')]),
-        'bias': iter([item for item in params_dict.items() if item[0].endswith('bias')]),
-        'gamma': iter([item for item in params_dict.items() if item[0].endswith('gamma')]),
-        'beta': iter([item for item in params_dict.items() if item[0].endswith('beta')]),
-        'moving_mean': iter([item for item in params_dict.items() if item[0].endswith('moving_mean')]),
-        'moving_variance': iter(
-            [item for item in params_dict.items() if item[0].endswith('moving_variance')]),
-        'minq': iter([item for item in params_dict.items() if item[0].endswith('minq')]),
-        'maxq': iter([item for item in params_dict.items() if item[0].endswith('maxq')])
-    }
-    for name, param in model.parameters_and_names():
-        key_name = name.split(".")[-1]
-        if key_name not in iterable_dict.keys():
-            continue
-        value_param = next(iterable_dict[key_name], None)
-        if value_param is not None:
-            param.set_parameter_data(value_param[1].data)
-            print(f'init model param {name} with checkpoint param {value_param[0]}')
diff --git a/model_zoo/official/cv/resnet50_quant/train.py b/model_zoo/official/cv/resnet50_quant/train.py
index be609bd543..2e13ec37ff 100755
--- a/model_zoo/official/cv/resnet50_quant/train.py
+++ b/model_zoo/official/cv/resnet50_quant/train.py
@@ -26,6 +26,7 @@ from mindspore.train.callback import ModelCheckpoint, CheckpointConfig, LossMoni
 from mindspore.train.loss_scale_manager import FixedLossScaleManager
 from mindspore.train.serialization import load_checkpoint
 from mindspore.train.quant import quant
+from mindspore.train.quant.quant_utils import load_nonquant_param_into_quant_net
 from mindspore.communication.management import init
 import mindspore.nn as nn
 import mindspore.common.initializer as weight_init
@@ -35,7 +36,6 @@ from src.dataset import create_dataset
 from src.lr_generator import get_lr
 from src.config import config_quant
 from src.crossentropy import CrossEntropy
-from src.utils import _load_param_into_net
 
 parser = argparse.ArgumentParser(description='Image classification')
 parser.add_argument('--run_distribute', type=bool, default=False, help='Run distribute')
@@ -85,7 +85,7 @@ if __name__ == '__main__':
     # weight init and load checkpoint file
     if args_opt.pre_trained:
         param_dict = load_checkpoint(args_opt.pre_trained)
-        _load_param_into_net(net, param_dict)
+        load_nonquant_param_into_quant_net(net, param_dict)
         epoch_size = config.epoch_size - config.pretrained_epoch_size
     else:
         for _, cell in net.cells_and_names():