diff --git a/src/renderer/src/i18n/locales/en-us.json b/src/renderer/src/i18n/locales/en-us.json
index c401fd74..a082831b 100644
--- a/src/renderer/src/i18n/locales/en-us.json
+++ b/src/renderer/src/i18n/locales/en-us.json
@@ -599,7 +599,8 @@
       "parameter_type": {
         "string": "Text",
         "number": "Number",
-        "boolean": "Boolean"
+        "boolean": "Boolean",
+        "json": "JSON"
       }
     },
     "prompts": {
diff --git a/src/renderer/src/i18n/locales/ja-jp.json b/src/renderer/src/i18n/locales/ja-jp.json
index 4389060d..c66a4f30 100644
--- a/src/renderer/src/i18n/locales/ja-jp.json
+++ b/src/renderer/src/i18n/locales/ja-jp.json
@@ -582,7 +582,8 @@
       "parameter_type": {
         "string": "テキスト",
         "number": "数値",
-        "boolean": "真偽値"
+        "boolean": "真偽値",
+        "json": "JSON"
       }
     },
     "prompts": {
diff --git a/src/renderer/src/i18n/locales/ru-ru.json b/src/renderer/src/i18n/locales/ru-ru.json
index 061cd412..bfd2a5c1 100644
--- a/src/renderer/src/i18n/locales/ru-ru.json
+++ b/src/renderer/src/i18n/locales/ru-ru.json
@@ -599,7 +599,8 @@
       "parameter_type": {
         "string": "Текст",
         "number": "Число",
-        "boolean": "Логическое"
+        "boolean": "Логическое",
+        "json": "JSON"
       }
     },
     "prompts": {
diff --git a/src/renderer/src/i18n/locales/zh-cn.json b/src/renderer/src/i18n/locales/zh-cn.json
index bf3a4fc8..5cf5fa01 100644
--- a/src/renderer/src/i18n/locales/zh-cn.json
+++ b/src/renderer/src/i18n/locales/zh-cn.json
@@ -588,7 +588,8 @@
       "parameter_type": {
         "string": "文本",
         "number": "数字",
-        "boolean": "布尔值"
+        "boolean": "布尔值",
+        "json": "JSON"
       }
     },
     "prompts": {
diff --git a/src/renderer/src/i18n/locales/zh-tw.json b/src/renderer/src/i18n/locales/zh-tw.json
index ac92e4c7..d22c6bcc 100644
--- a/src/renderer/src/i18n/locales/zh-tw.json
+++ b/src/renderer/src/i18n/locales/zh-tw.json
@@ -587,7 +587,8 @@
       "parameter_type": {
         "string": "文字",
         "number": "數字",
-        "boolean": "布林值"
+        "boolean": "布林值",
+        "json": "JSON"
       }
     },
     "prompts": {
diff --git a/src/renderer/src/pages/home/Tabs/SettingsTab.tsx b/src/renderer/src/pages/home/Tabs/SettingsTab.tsx
index 9f8f59fa..27289499 100644
--- a/src/renderer/src/pages/home/Tabs/SettingsTab.tsx
+++ b/src/renderer/src/pages/home/Tabs/SettingsTab.tsx
@@ -1,4 +1,4 @@
-import { CheckOutlined, DeleteOutlined, PlusOutlined, QuestionCircleOutlined, ReloadOutlined } from '@ant-design/icons'
+import { CheckOutlined, QuestionCircleOutlined, ReloadOutlined } from '@ant-design/icons'
 import { HStack } from '@renderer/components/Layout'
 import Scrollbar from '@renderer/components/Scrollbar'
 import {
@@ -29,7 +29,7 @@ import {
   setShowMessageDivider
 } from '@renderer/store/settings'
 import { Assistant, AssistantSettings, ThemeMode } from '@renderer/types'
-import { Button, Col, Input, InputNumber, Row, Select, Slider, Switch, Tooltip } from 'antd'
+import { Col, InputNumber, Row, Select, Slider, Switch, Tooltip } from 'antd'
 import { FC, useEffect, useState } from 'react'
 import { useTranslation } from 'react-i18next'
 import styled from 'styled-components'
@@ -203,106 +203,6 @@ const SettingsTab: FC<Props> = (props) => {
             />
           </Col>
         </Row>
-        {assistant?.settings?.customParameters?.map((param, index) => (
-          <ParameterCard key={index}>
-            <Row align="middle" gutter={8} style={{ marginBottom: 8 }}>
-              <Col span={14}>
-                <Input
-                  placeholder={t('models.parameter_name')}
-                  value={param.name}
-                  onChange={(e) => {
-                    const newParams = [...(assistant?.settings?.customParameters || [])]
-                    newParams[index] = { ...param, name: e.target.value }
-                    onUpdateAssistantSettings({ customParameters: newParams })
-                  }}
-                />
-              </Col>
-              <Col span={10}>
-                <Select
-                  value={param.type}
-                  onChange={(value: 'string' | 'number' | 'boolean') => {
-                    const newParams = [...(assistant?.settings?.customParameters || [])]
-                    let defaultValue: any = ''
-                    switch (value) {
-                      case 'number':
-                        defaultValue = 0
-                        break
-                      case 'boolean':
-                        defaultValue = false
-                        break
-                      default:
-                        defaultValue = ''
-                    }
-                    newParams[index] = { ...param, type: value, value: defaultValue }
-                    onUpdateAssistantSettings({ customParameters: newParams })
-                  }}
-                  style={{ width: '100%' }}>
-                  <Select.Option value="string">{t('models.parameter_type.string')}</Select.Option>
-                  <Select.Option value="number">{t('models.parameter_type.number')}</Select.Option>
-                  <Select.Option value="boolean">{t('models.parameter_type.boolean')}</Select.Option>
-                </Select>
-              </Col>
-            </Row>
-            <Row align="middle" gutter={10}>
-              <Col span={20}>
-                {param.type === 'boolean' ? (
-                  <Switch
-                    checked={param.value as boolean}
-                    onChange={(checked) => {
-                      const newParams = [...(assistant?.settings?.customParameters || [])]
-                      newParams[index] = { ...param, value: checked }
-                      onUpdateAssistantSettings({ customParameters: newParams })
-                    }}
-                  />
-                ) : param.type === 'number' ? (
-                  <InputNumber
-                    style={{ width: '100%' }}
-                    value={param.value as number}
-                    onChange={(value) => {
-                      const newParams = [...(assistant?.settings?.customParameters || [])]
-                      newParams[index] = { ...param, value: value || 0 }
-                      onUpdateAssistantSettings({ customParameters: newParams })
-                    }}
-                    step={0.01}
-                  />
-                ) : (
-                  <Input
-                    value={typeof param.value === 'string' ? param.value : JSON.stringify(param.value)}
-                    onChange={(e) => {
-                      const newParams = [...(assistant?.settings?.customParameters || [])]
-                      newParams[index] = { ...param, value: e.target.value }
-                      onUpdateAssistantSettings({ customParameters: newParams })
-                    }}
-                  />
-                )}
-              </Col>
-              <Col span={4}>
-                <Button
-                  icon={<DeleteOutlined />}
-                  onClick={() => {
-                    const newParams = [...(assistant?.settings?.customParameters || [])]
-                    newParams.splice(index, 1)
-                    onUpdateAssistantSettings({ customParameters: newParams })
-                  }}
-                  danger
-                  style={{ width: '100%' }}
-                />
-              </Col>
-            </Row>
-          </ParameterCard>
-        ))}
-        <Button
-          icon={<PlusOutlined />}
-          onClick={() => {
-            const newParams = [
-              ...(assistant?.settings?.customParameters || []),
-              { name: '', value: '', type: 'string' as const }
-            ]
-            onUpdateAssistantSettings({ customParameters: newParams })
-          }}
-          style={{ marginBottom: 0, width: '100%', borderStyle: 'dashed' }}>
-          {t('models.add_parameter')}
-        </Button>
       </SettingGroup>
       <SettingGroup>
         <SettingSubtitle style={{ marginTop: 0 }}>{t('settings.messages.title')}</SettingSubtitle>
@@ -519,15 +419,4 @@ export const SettingGroup = styled.div<{ theme?: ThemeMode }>`
   background: var(--color-group-background);
 `
 
-const ParameterCard = styled.div`
-  margin-bottom: 8px;
-  padding: 8px;
-  border: 1px solid var(--color-border);
-  border-radius: 6px;
-  background: var(--color-background);
-  &:last-child {
-    margin-bottom: 12px;
-  }
-`
-
 export default SettingsTab
diff --git a/src/renderer/src/pages/settings/AssistantSettings/AssistantModelSettings.tsx b/src/renderer/src/pages/settings/AssistantSettings/AssistantModelSettings.tsx
index 4872d9b2..fcaef439 100644
--- a/src/renderer/src/pages/settings/AssistantSettings/AssistantModelSettings.tsx
+++ b/src/renderer/src/pages/settings/AssistantSettings/AssistantModelSettings.tsx
@@ -28,8 +28,8 @@ const AssistantModelSettings: FC<Props> = ({ assistant, updateAssistant, updateA
   const [customParameters, setCustomParameters] = useState<
     Array<{
       name: string
-      value: string | number | boolean
-      type: 'string' | 'number' | 'boolean'
+      value: string | number | boolean | object
+      type: 'string' | 'number' | 'boolean' | 'json'
     }>
   >(assistant?.settings?.customParameters ?? [])
   const { t } = useTranslation()
@@ -68,7 +68,7 @@ const AssistantModelSettings: FC<Props> = ({ assistant, updateAssistant, updateA
   const onUpdateCustomParameter = (
     index: number,
     field: 'name' | 'value' | 'type',
-    value: string | number | boolean
+    value: string | number | boolean | object
   ) => {
     const newParams = [...customParameters]
     if (field === 'type') {
@@ -80,6 +80,9 @@ const AssistantModelSettings: FC<Props> = ({ assistant, updateAssistant, updateA
         case 'boolean':
           defaultValue = false
           break
+        case 'json':
+          defaultValue = ''
+          break
         default:
           defaultValue = ''
       }
@@ -113,6 +116,20 @@ const AssistantModelSettings: FC<Props> = ({ assistant, updateAssistant, updateA
             onChange={(checked) => onUpdateCustomParameter(index, 'value', checked)}
           />
         )
+      case 'json':
+        return (
+          <Input
+            value={typeof param.value === 'string' ? param.value : JSON.stringify(param.value, null, 2)}
+            onChange={(e) => {
+              try {
+                const jsonValue = JSON.parse(e.target.value)
+                onUpdateCustomParameter(index, 'value', jsonValue)
+              } catch {
+                onUpdateCustomParameter(index, 'value', e.target.value)
+              }
+            }}
+          />
+        )
       default:
         return (
           <Input
@@ -353,6 +370,7 @@ const AssistantModelSettings: FC<Props> = ({ assistant, updateAssistant, updateA
               <Select.Option value="string">{t('models.parameter_type.string')}</Select.Option>
               <Select.Option value="number">{t('models.parameter_type.number')}</Select.Option>
               <Select.Option value="boolean">{t('models.parameter_type.boolean')}</Select.Option>
+              <Select.Option value="json">{t('models.parameter_type.json')}</Select.Option>
             </Select>
           </Col>
           <Col span={12}>{renderParameterValueInput(param, index)}</Col>
diff --git a/src/renderer/src/pages/settings/DataSettings/WebDavSettings.tsx b/src/renderer/src/pages/settings/DataSettings/WebDavSettings.tsx
index b34ea5ad..094ea934 100644
--- a/src/renderer/src/pages/settings/DataSettings/WebDavSettings.tsx
+++ b/src/renderer/src/pages/settings/DataSettings/WebDavSettings.tsx
@@ -25,7 +25,6 @@ const WebDavSettings: FC = () => {
     webdavUser: webDAVUser,
     webdavPass: webDAVPass,
     webdavPath: webDAVPath,
-    webdavAutoSync: webDAVAutoSync,
     webdavSyncInterval: webDAVSyncInterval
   } = useSettings()
 
diff --git a/src/renderer/src/providers/BaseProvider.ts b/src/renderer/src/providers/BaseProvider.ts
index eceff2ce..968bb283 100644
--- a/src/renderer/src/providers/BaseProvider.ts
+++ b/src/renderer/src/providers/BaseProvider.ts
@@ -3,7 +3,7 @@ import { getOllamaKeepAliveTime } from '@renderer/hooks/useOllama'
 import { getKnowledgeReferences } from '@renderer/services/KnowledgeService'
 import store from '@renderer/store'
 import { Assistant, Message, Model, Provider, Suggestion } from '@renderer/types'
-import { delay } from '@renderer/utils'
+import { delay, isJSON } from '@renderer/utils'
 import OpenAI from 'openai'
 
 import { CompletionsParams } from '.'
@@ -101,13 +101,16 @@ export default abstract class BaseProvider {
 
   protected getCustomParameters(assistant: Assistant) {
     return (
-      assistant?.settings?.customParameters?.reduce(
-        (acc, param) => ({
-          ...acc,
-          [param.name]: param.value
-        }),
-        {}
-      ) || {}
+      assistant?.settings?.customParameters?.reduce((acc, param) => {
+        if (!param.name?.trim()) {
+          return acc
+        }
+        if (param.type === 'json') {
+          const value = param.value as string
+          return { ...acc, [param.name]: isJSON(value) ? JSON.parse(value) : value }
+        }
+        return { ...acc, [param.name]: param.value }
+      }, {}) || {}
     )
   }
 }
diff --git a/src/renderer/src/types/index.ts b/src/renderer/src/types/index.ts
index 1dac3eb1..8badfc9c 100644
--- a/src/renderer/src/types/index.ts
+++ b/src/renderer/src/types/index.ts
@@ -32,8 +32,8 @@ export type AssistantSettings = {
   autoResetModel: boolean
   customParameters?: {
     name: string
-    value: string | number | boolean
-    type: 'string' | 'number' | 'boolean'
+    value: string | number | boolean | object
+    type: 'string' | 'number' | 'boolean' | 'json'
   }[]
 }