diff --git a/packages/core/client/src/schema-component/antd/input/Json.tsx b/packages/core/client/src/schema-component/antd/input/Json.tsx
index 009d0f166..5f8e40553 100644
--- a/packages/core/client/src/schema-component/antd/input/Json.tsx
+++ b/packages/core/client/src/schema-component/antd/input/Json.tsx
@@ -2,19 +2,52 @@ import { Field } from '@formily/core';
 import { useField } from '@formily/react';
 import { Input } from 'antd';
 import { TextAreaProps } from 'antd/es/input';
-import React, { Ref } from 'react';
+import React, { useState, useEffect, Ref } from 'react';
+import { cx, css } from '@emotion/css';
 
 export type JSONTextAreaProps = TextAreaProps & { value?: string; space?: number };
 
 export const Json = React.forwardRef<typeof Input.TextArea, JSONTextAreaProps>(
   ({ value, onChange, space = 2, ...props }: JSONTextAreaProps, ref: Ref<any>) => {
     const field = useField<Field>();
+    const [text, setText] = useState('');
+    useEffect(() => {
+      try {
+        if (value != null) {
+          setText(JSON.stringify(value, null, space));
+        }
+      } catch (ex) {
+        //
+      }
+    }, [space, value]);
     return (
       <Input.TextArea
         {...props}
+        className={cx(
+          css`
+            font-size: 90%;
+            font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
+          `,
+          props.className,
+        )}
         ref={ref}
-        defaultValue={value != null ? JSON.stringify(value, null, space) : ''}
+        value={text}
         onChange={(ev) => {
+          setText(ev.target.value);
+          try {
+            if (ev.target.value.trim() !== '') {
+              JSON.parse(ev.target.value);
+            }
+            field.setFeedback({});
+          } catch (err) {
+            field.setFeedback({
+              type: 'error',
+              code: 'JSONSyntaxError',
+              messages: [err.message],
+            });
+          }
+        }}
+        onBlur={(ev) => {
           try {
             const v = ev.target.value.trim() !== '' ? JSON.parse(ev.target.value) : null;
             field.setFeedback({});
diff --git a/packages/core/client/src/schema-component/antd/input/__tests__/Input.test.tsx b/packages/core/client/src/schema-component/antd/input/__tests__/Input.test.tsx
index 794ec7e71..364d4a19a 100644
--- a/packages/core/client/src/schema-component/antd/input/__tests__/Input.test.tsx
+++ b/packages/core/client/src/schema-component/antd/input/__tests__/Input.test.tsx
@@ -136,7 +136,8 @@ describe('Input.JSON', () => {
     const textarea = container.querySelector('textarea') as HTMLTextAreaElement;
     const pre = container.querySelector('pre') as HTMLPreElement;
     fireEvent.change(textarea, { target: { value: '{"name":"nocobase"}' } });
-    expect(textarea.value).toBe('{"name":"nocobase"}');
+    fireEvent.blur(textarea, { target: { value: '{"name":"nocobase"}' } });
+    expect(textarea.value).toBe('{\n  "name": "nocobase"\n}');
     expect(pre).toMatchInlineSnapshot(`
       <pre
         class="ant-json css-4dta7v"
@@ -153,6 +154,7 @@ describe('Input.JSON', () => {
 
     const textarea = container.querySelector('textarea') as HTMLTextAreaElement;
     fireEvent.change(textarea, { target: { value: '{"name":nocobase}' } });
+    fireEvent.blur(textarea, { target: { value: '{"name":nocobase}' } });
     expect(screen.getByText(`Unexpected token o in JSON at position 9`).innerHTML).toBe(
       `Unexpected token o in JSON at position 9`,
     );
diff --git a/packages/core/client/src/schema-component/antd/variable/JSONInput.tsx b/packages/core/client/src/schema-component/antd/variable/JSONInput.tsx
index 175ec81b0..10c8d105d 100644
--- a/packages/core/client/src/schema-component/antd/variable/JSONInput.tsx
+++ b/packages/core/client/src/schema-component/antd/variable/JSONInput.tsx
@@ -3,7 +3,6 @@ import { Button } from 'antd';
 import { css } from '@emotion/css';
 
 import { Input } from '../input';
-import { useTranslation } from 'react-i18next';
 import { VariableSelect } from './VariableSelect';
 
 // NOTE: https://stackoverflow.com/questions/23892547/what-is-the-best-way-to-trigger-onchange-event-in-react-js/46012210#46012210
@@ -19,25 +18,9 @@ function setNativeInputValue(input, value) {
 
 export function JSONInput(props) {
   const inputRef = useRef<any>(null);
-  const { value, space = 2, scope } = props;
-  const { t } = useTranslation();
+  const { scope } = props;
   const options = typeof scope === 'function' ? scope() : scope ?? [];
 
-  function onFormat() {
-    if (!inputRef.current) {
-      return;
-    }
-    if (!value) {
-      return;
-    }
-
-    const { textArea } = inputRef.current.resizableTextArea;
-    const nextValue = JSON.stringify(value, null, space);
-    setNativeInputValue(textArea, nextValue);
-    textArea.setSelectionRange(nextValue.length, nextValue.length);
-    textArea.focus();
-  }
-
   function onInsert(selected) {
     if (!inputRef.current) {
       return;
@@ -73,7 +56,6 @@ export function JSONInput(props) {
           }
         `}
       >
-        <Button onClick={onFormat}>{t('Prettify')}</Button>
         <VariableSelect options={options} onInsert={onInsert} />
       </Button.Group>
     </div>
diff --git a/packages/core/client/src/schema-component/antd/variable/__tests__/variable.test.tsx b/packages/core/client/src/schema-component/antd/variable/__tests__/variable.test.tsx
index b13955cef..f826e8b71 100644
--- a/packages/core/client/src/schema-component/antd/variable/__tests__/variable.test.tsx
+++ b/packages/core/client/src/schema-component/antd/variable/__tests__/variable.test.tsx
@@ -61,7 +61,6 @@ describe('Variable', () => {
     const variableSelector = document.querySelector('.ant-select-selector') as HTMLElement;
     expect(input).toBeInTheDocument();
     expect(variableSelector).toBeInTheDocument();
-    expect(screen.getByText('Prettify')).toBeInTheDocument();
 
     // https://testing-library.com/docs/user-event/keyboard/
     await userEvent.type(input, '{{ "a": "');
@@ -71,13 +70,5 @@ describe('Variable', () => {
 
     await userEvent.type(input, '" }');
     expect(input.value).toMatchInlineSnapshot('"{ \\"a\\": \\"{{v1}}\\" }"');
-
-    // 格式化一下
-    await userEvent.click(screen.getByText('Prettify'));
-    expect(input.value).toMatchInlineSnapshot(`
-      "{
-        \\"a\\": \\"{{v1}}\\"
-      }"
-    `);
   });
 });
diff --git a/packages/plugins/workflow/src/client/nodes/request.tsx b/packages/plugins/workflow/src/client/nodes/request.tsx
index 5ca66a2eb..c99337040 100644
--- a/packages/plugins/workflow/src/client/nodes/request.tsx
+++ b/packages/plugins/workflow/src/client/nodes/request.tsx
@@ -1,5 +1,4 @@
 import { ArrayItems } from '@formily/antd';
-import { cx, css } from '@emotion/css';
 
 import { NAMESPACE } from '../locale';
 import { useWorkflowVariableOptions } from '../variable';
@@ -146,13 +145,7 @@ export default {
           minRows: 10,
         },
         placeholder: `{{t("Input request data", { ns: "${NAMESPACE}" })}}`,
-        className: cx(
-          'full-width',
-          css`
-            font-size: 90%;
-            font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
-          `,
-        ),
+        className: 'full-width',
       },
       description: `{{t("Only support standard JSON data", { ns: "${NAMESPACE}" })}}`,
     },