diff --git a/src/executor/tools/task/approval/index.tsx b/src/executor/tools/task/approval/index.tsx
index 2360e1bddbb934d5b22b33ce570f1a04cb2916a3..4bb4a6590bae91d74a99566bc6e22198adc6814f 100644
--- a/src/executor/tools/task/approval/index.tsx
+++ b/src/executor/tools/task/approval/index.tsx
@@ -10,7 +10,7 @@ import {
   loadMembers,
   loadParentApprovalNode,
   WorkNodeDisplayModel,
-  getChangedFields
+  getChangedFields,
 } from '@/utils/work';
 import { CheckOutlined, CloseOutlined } from '@ant-design/icons';
 import ProTable from '@ant-design/pro-table';
@@ -870,7 +870,13 @@ const TaskApproval: React.FC<TaskDetailType> = ({ task, finished, fromData }) =>
                     }
                   }
                 }
-                task.instanceData = JSON.parse(getChangedFields(JSON.stringify(task.instanceData)));
+                try {
+                  task.instanceData = JSON.parse(
+                    getChangedFields(JSON.stringify(task.instanceData)),
+                  );
+                } catch (error) {
+                  /* empty */
+                }
                 await handleAfterData(true);
                 approving();
               },