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 64d283332..0af77e35a 100644
--- a/packages/core/client/src/schema-component/antd/input/Json.tsx
+++ b/packages/core/client/src/schema-component/antd/input/Json.tsx
@@ -25,7 +25,7 @@ export const Json = React.forwardRef<typeof Input.TextArea, JSONTextAreaProps>(
         {...props}
         className={cx(
           css`
-            font-size: 90%;
+            font-size: 80%;
             font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
           `,
           props.className,
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 833999d66..376c74c4d 100644
--- a/packages/core/client/src/schema-component/antd/variable/JSONInput.tsx
+++ b/packages/core/client/src/schema-component/antd/variable/JSONInput.tsx
@@ -1,64 +1,8 @@
-import React, { useRef, useState } from 'react';
-import { Button } from 'antd';
-import { css } from '@emotion/css';
-import { cloneDeep } from 'lodash';
+import React from 'react';
 
 import { Input } from '../input';
-import { VariableSelect } from './VariableSelect';
-
-// NOTE: https://stackoverflow.com/questions/23892547/what-is-the-best-way-to-trigger-onchange-event-in-react-js/46012210#46012210
-function setNativeInputValue(input, value) {
-  const nativeInputValueSetter = Object.getOwnPropertyDescriptor(input.constructor.prototype, 'value')?.set;
-  nativeInputValueSetter?.call(input, value);
-  input.dispatchEvent(
-    new Event('input', {
-      bubbles: true,
-    }),
-  );
-}
+import { RawTextArea } from './RawTextArea';
 
 export function JSONInput(props) {
-  const inputRef = useRef<any>(null);
-  const { scope, changeOnSelect, ...others } = props;
-  const [options, setOptions] = useState(scope ? cloneDeep(scope) : []);
-
-  function onInsert(selected) {
-    if (!inputRef.current) {
-      return;
-    }
-
-    const variable = `{{${selected.join('.')}}}`;
-
-    const { textArea } = inputRef.current.resizableTextArea;
-    const nextValue =
-      textArea.value.slice(0, textArea.selectionStart) + variable + textArea.value.slice(textArea.selectionEnd);
-    const nextPos = [textArea.selectionStart, textArea.selectionStart + variable.length];
-    setNativeInputValue(textArea, nextValue);
-    textArea.setSelectionRange(...nextPos);
-    textArea.focus();
-  }
-  return (
-    <div
-      className={css`
-        position: relative;
-        .ant-input {
-          width: 100%;
-        }
-      `}
-    >
-      <Input.JSON {...others} ref={inputRef} />
-      <Button.Group
-        className={css`
-          position: absolute;
-          right: 0;
-          top: 0;
-          .ant-btn-sm {
-            font-size: 85%;
-          }
-        `}
-      >
-        <VariableSelect options={options} setOptions={setOptions} onInsert={onInsert} changeOnSelect={changeOnSelect} />
-      </Button.Group>
-    </div>
-  );
+  return <RawTextArea {...props} component={Input.JSON} />;
 }
diff --git a/packages/core/client/src/schema-component/antd/variable/RawTextArea.tsx b/packages/core/client/src/schema-component/antd/variable/RawTextArea.tsx
new file mode 100644
index 000000000..83f41fc5a
--- /dev/null
+++ b/packages/core/client/src/schema-component/antd/variable/RawTextArea.tsx
@@ -0,0 +1,63 @@
+import React, { useRef, useState } from 'react';
+import { css } from '@emotion/css';
+import { Button, Input } from 'antd';
+import { cloneDeep } from 'lodash';
+
+import { VariableSelect } from './VariableSelect';
+
+// NOTE: https://stackoverflow.com/questions/23892547/what-is-the-best-way-to-trigger-onchange-event-in-react-js/46012210#46012210
+function setNativeInputValue(input, value) {
+  const nativeInputValueSetter = Object.getOwnPropertyDescriptor(input.constructor.prototype, 'value')?.set;
+  nativeInputValueSetter?.call(input, value);
+  input.dispatchEvent(
+    new Event('input', {
+      bubbles: true,
+    }),
+  );
+}
+
+export function RawTextArea(props): JSX.Element {
+  const inputRef = useRef<any>(null);
+  const { scope, changeOnSelect, component: Component = Input.TextArea, ...others } = props;
+  const [options, setOptions] = useState(scope ? cloneDeep(scope) : []);
+
+  function onInsert(selected) {
+    if (!inputRef.current) {
+      return;
+    }
+
+    const variable = `{{${selected.join('.')}}}`;
+
+    const { textArea } = inputRef.current.resizableTextArea;
+    const nextValue =
+      textArea.value.slice(0, textArea.selectionStart) + variable + textArea.value.slice(textArea.selectionEnd);
+    const nextPos = [textArea.selectionStart, textArea.selectionStart + variable.length];
+    setNativeInputValue(textArea, nextValue);
+    textArea.setSelectionRange(...nextPos);
+    textArea.focus();
+  }
+  return (
+    <div
+      className={css`
+        position: relative;
+        .ant-input {
+          width: 100%;
+        }
+      `}
+    >
+      <Component {...others} ref={inputRef} />
+      <Button.Group
+        className={css`
+          position: absolute;
+          right: 0;
+          top: 0;
+          .ant-btn-sm {
+            font-size: 85%;
+          }
+        `}
+      >
+        <VariableSelect options={options} setOptions={setOptions} onInsert={onInsert} changeOnSelect={changeOnSelect} />
+      </Button.Group>
+    </div>
+  );
+}
diff --git a/packages/core/client/src/schema-component/antd/variable/Variable.tsx b/packages/core/client/src/schema-component/antd/variable/Variable.tsx
index bb9a46738..564f1101e 100644
--- a/packages/core/client/src/schema-component/antd/variable/Variable.tsx
+++ b/packages/core/client/src/schema-component/antd/variable/Variable.tsx
@@ -3,6 +3,7 @@ import { connect, mapReadPretty } from '@formily/react';
 import { IField } from '../../../collection-manager';
 import { Input } from './Input';
 import { JSONInput } from './JSONInput';
+import { RawTextArea } from './RawTextArea';
 import { TextArea } from './TextArea';
 
 export function Variable() {
@@ -13,6 +14,8 @@ Variable.Input = connect(Input);
 
 Variable.TextArea = connect(TextArea, mapReadPretty(TextArea.ReadPretty));
 
+Variable.RawTextArea = connect(RawTextArea);
+
 Variable.JSON = connect(JSONInput);
 
 export default Variable;