diff --git a/mindspore/ops/operations/array_ops.py b/mindspore/ops/operations/array_ops.py
index 676ed79bf2..91ceca2b21 100644
--- a/mindspore/ops/operations/array_ops.py
+++ b/mindspore/ops/operations/array_ops.py
@@ -4584,7 +4584,7 @@ class GatherD(PrimitiveWithInfer):
         - **x** (Tensor) - The source tensor.
         - **dim** (int) - The axis along which to index. It must be int32. Only constant value is allowed.
         - **index** (Tensor) - The indices of elements to gather. It can be one of the following data types:
-          int32, int64.
+          int32, int64. The value range of each index element is [-x_rank[dim], x_rank[dim]).
 
     Outputs:
         Tensor, the shape of tensor is :math:`(z_1, z_2, ..., z_N)`.