diff --git a/packages/designer/src/designer/setting/setting-field.ts b/packages/designer/src/designer/setting/setting-field.ts
index 139373c0b..1a63fb7a4 100644
--- a/packages/designer/src/designer/setting/setting-field.ts
+++ b/packages/designer/src/designer/setting/setting-field.ts
@@ -16,7 +16,7 @@ import type {
 import { Transducer } from './utils';
 import { ISettingPropEntry, SettingPropEntry } from './setting-prop-entry';
 import { computed, obx, makeObservable, action, untracked, intl } from '@alilc/lowcode-editor-core';
-import { cloneDeep, isCustomView, isDynamicSetter } from '@alilc/lowcode-utils';
+import { cloneDeep, isCustomView, isDynamicSetter, isJSExpression } from '@alilc/lowcode-utils';
 import { ISettingTopEntry } from './setting-top-entry';
 import { IComponentMeta, INode } from '@alilc/lowcode-designer';
 
@@ -38,28 +38,28 @@ export interface ISettingField extends ISettingPropEntry, Omit<IBaseModelSetting
   IComponentMeta,
   INode
 >, 'setValue' | 'key' | 'node'> {
-  get items(): Array<ISettingField | IPublicTypeCustomView>;
-
-  get title(): string | ReactNode | undefined;
-
   readonly isSettingField: true;
 
-  purge(): void;
+  readonly isRequired: boolean;
+
+  readonly isGroup: boolean;
 
   extraProps: IPublicTypeFieldExtraProps;
 
-  get setter(): IPublicTypeSetterType | null;
+  get items(): Array<ISettingField | IPublicTypeCustomView>;
 
-  get expanded(): boolean;
+  get title(): string | ReactNode | undefined;
 
-  readonly isRequired: boolean;
+  get setter(): IPublicTypeSetterType | null;
 
-  readonly isGroup: boolean;
+  get expanded(): boolean;
 
   get valueState(): number;
 
   setExpanded(value: boolean): void;
 
+  purge(): void;
+
   setValue(
     val: any,
     isHotValue?: boolean,
@@ -271,16 +271,29 @@ export class SettingField extends SettingPropEntry implements ISettingField {
     }
     if (this.isUseVariable()) {
       const oldValue = this.getValue();
-      this.setValue(
-        {
-          type: 'JSExpression',
-          value: oldValue.value,
-          mock: value,
-        },
-        false,
-        false,
-        options,
-      );
+      if (isJSExpression(value)) {
+        this.setValue(
+          {
+            type: 'JSExpression',
+            value: value.value,
+            mock: oldValue.mock,
+          },
+          false,
+          false,
+          options,
+        );
+      } else {
+        this.setValue(
+          {
+            type: 'JSExpression',
+            value: oldValue.value,
+            mock: value,
+          },
+          false,
+          false,
+          options,
+        );
+      }
     } else {
       this.setValue(value, false, false, options);
     }
@@ -297,7 +310,6 @@ export class SettingField extends SettingPropEntry implements ISettingField {
     return this.designer!.autorun(action, true);
   }
 
-
   internalToShellField() {
     return this.designer!.shellModelFactory.createSettingField(this);
   }
diff --git a/packages/designer/tests/designer/setting/setting-field.test.ts b/packages/designer/tests/designer/setting/setting-field.test.ts
index f79bc9876..53ed2829d 100644
--- a/packages/designer/tests/designer/setting/setting-field.test.ts
+++ b/packages/designer/tests/designer/setting/setting-field.test.ts
@@ -168,6 +168,40 @@ describe('setting-field 测试', () => {
       expect(arrField.getHotValue()).toEqual([undefined, {name: '2'}, {name: '3'}]);
     });
 
+    it('js expression setValue / setHotValue', () => {
+      const settingEntry = mockNode.settingEntry;
+      const field = settingEntry.get('behavior');
+
+      const subField = field.createField({
+        name: 'sub',
+        title: 'sub',
+      });
+      subField.setValue({
+        type: 'JSExpression',
+        value: 'state.a',
+        mock: 'haha',
+      });
+
+      subField.setHotValue({
+        type: 'JSExpression',
+        value: 'state.b',
+      });
+
+      expect(subField.getValue()).toEqual({
+        type: 'JSExpression',
+        value: 'state.b',
+        mock: 'haha',
+      });
+
+      subField.setHotValue('mock02');
+
+      expect(subField.getValue()).toEqual({
+        type: 'JSExpression',
+        value: 'state.b',
+        mock: 'mock02',
+      });
+    });
+
     it('onEffect', async () => {
       const settingEntry = mockNode.settingEntry as SettingTopEntry;
       const field = settingEntry.get('behavior');