diff --git a/react-ui/src/components/ParameterSelect/index.tsx b/react-ui/src/components/ParameterSelect/index.tsx
index cdae15ed..2fe4a127 100644
--- a/react-ui/src/components/ParameterSelect/index.tsx
+++ b/react-ui/src/components/ParameterSelect/index.tsx
@@ -122,7 +122,7 @@ function ParameterSelect({
   const handleChange = (text: string) => {
     // 数据集、模型、服务，转换成对象
     if (isObjectValue) {
-      // 设置为 null 是因为 antv g6 的 bug
+      // 设置为 null 是因为 ant g6 bug
       // 如果值为 undefined 时， graph.changeData(data) 会保留前面的值
       const selectValue = text ? valueMap.get(text) : null;
       if (typeof value === 'object' && value !== null) {
diff --git a/react-ui/src/pages/Pipeline/components/PipelineNodeDrawer/index.tsx b/react-ui/src/pages/Pipeline/components/PipelineNodeDrawer/index.tsx
index c1341eb1..d6da2b16 100644
--- a/react-ui/src/pages/Pipeline/components/PipelineNodeDrawer/index.tsx
+++ b/react-ui/src/pages/Pipeline/components/PipelineNodeDrawer/index.tsx
@@ -20,6 +20,7 @@ import {
   PipelineNodeModelParameter,
   PipelineNodeModelSerialize,
 } from '@/types';
+import { undefinedToNull } from '@/utils';
 import { openAntdModal } from '@/utils/modal';
 import { to } from '@/utils/promise';
 import { removeFormListItem } from '@/utils/ui';
@@ -92,8 +93,12 @@ const PipelineNodeParameter = forwardRef(({ onFormChange }: PipelineNodeParamete
         out_parameters: out_parameters,
         formError: !!error,
       };
-      console.log('res', res);
-      onFormChange(res);
+
+      // ant g6 bug
+      // 如果值为 undefined 时， graph.changeData(data) 会保留前面的值
+      const convertRes = undefinedToNull(res);
+      console.log('res', convertRes);
+      onFormChange(convertRes as PipelineNodeModelSerialize);
     }
   };
   const onClose = () => {