diff --git a/web/src/components/playground/ParameterControl.jsx b/web/src/components/playground/ParameterControl.jsx
index e06c3973..82ab4b77 100644
--- a/web/src/components/playground/ParameterControl.jsx
+++ b/web/src/components/playground/ParameterControl.jsx
@@ -18,7 +18,14 @@ For commercial licensing, please contact support@quantumnous.com
 */
 
 import React from 'react';
-import { Input, Slider, Typography, Button, Tag } from '@douyinfe/semi-ui';
+import {
+  Input,
+  InputNumber,
+  Slider,
+  Typography,
+  Button,
+  Tag,
+} from '@douyinfe/semi-ui';
 import { useTranslation } from 'react-i18next';
 import {
   Hash,
@@ -241,15 +248,14 @@ const ParameterControl = ({
             disabled={disabled}
           />
         </div>
-        <Input
+        <InputNumber
           placeholder='MaxTokens'
           name='max_tokens'
-          required
-          autoComplete='new-password'
-          defaultValue={0}
           value={inputs.max_tokens}
-          onChange={(value) => onInputChange('max_tokens', value)}
-          className='!rounded-lg'
+          onNumberChange={(value) => onInputChange('max_tokens', value)}
+          min={0}
+          precision={0}
+          style={{ width: '100%' }}
           disabled={!parameterEnabled.max_tokens || disabled}
         />
       </div>
diff --git a/web/src/components/playground/configStorage.js b/web/src/components/playground/configStorage.js
index 86674eb5..d201ed6a 100644
--- a/web/src/components/playground/configStorage.js
+++ b/web/src/components/playground/configStorage.js
@@ -65,11 +65,15 @@ export const loadConfig = () => {
     const savedConfig = localStorage.getItem(STORAGE_KEYS.CONFIG);
     if (savedConfig) {
       const parsedConfig = JSON.parse(savedConfig);
+      const parsedMaxTokens = parseInt(parsedConfig?.inputs?.max_tokens, 10);
 
       const mergedConfig = {
         inputs: {
           ...DEFAULT_CONFIG.inputs,
           ...parsedConfig.inputs,
+          max_tokens: Number.isNaN(parsedMaxTokens)
+            ? parsedConfig?.inputs?.max_tokens
+            : parsedMaxTokens,
         },
         parameterEnabled: {
           ...DEFAULT_CONFIG.parameterEnabled,
diff --git a/web/src/helpers/api.js b/web/src/helpers/api.js
index 9381968e..88122a56 100644
--- a/web/src/helpers/api.js
+++ b/web/src/helpers/api.js
@@ -150,7 +150,18 @@ export const buildApiPayload = (
     const value = inputs[param];
     const hasValue = value !== undefined && value !== null;
 
-    if (enabled && hasValue) {
+    if (!enabled) {
+      return;
+    }
+
+    if (param === 'max_tokens') {
+      if (typeof value === 'number') {
+        payload[param] = value;
+      }
+      return;
+    }
+
+    if (hasValue) {
       payload[param] = value;
     }
   });
diff --git a/web/src/hooks/playground/usePlaygroundState.js b/web/src/hooks/playground/usePlaygroundState.js
index 79be1013..130df90d 100644
--- a/web/src/hooks/playground/usePlaygroundState.js
+++ b/web/src/hooks/playground/usePlaygroundState.js
@@ -167,7 +167,14 @@ export const usePlaygroundState = () => {
   // 配置导入/重置
   const handleConfigImport = useCallback((importedConfig) => {
     if (importedConfig.inputs) {
-      setInputs((prev) => ({ ...prev, ...importedConfig.inputs }));
+      const parsedMaxTokens = parseInt(importedConfig.inputs.max_tokens, 10);
+      setInputs((prev) => ({
+        ...prev,
+        ...importedConfig.inputs,
+        max_tokens: Number.isNaN(parsedMaxTokens)
+          ? importedConfig.inputs.max_tokens
+          : parsedMaxTokens,
+      }));
     }
     if (importedConfig.parameterEnabled) {
       setParameterEnabled((prev) => ({