diff --git a/src/renderer/src/config/models.ts b/src/renderer/src/config/models.ts
index 6ba42cbd..8f2170e5 100644
--- a/src/renderer/src/config/models.ts
+++ b/src/renderer/src/config/models.ts
@@ -130,6 +130,7 @@ import XirangModelLogoDark from '@renderer/assets/images/models/xirang_dark.png'
 import YiModelLogo from '@renderer/assets/images/models/yi.png'
 import YiModelLogoDark from '@renderer/assets/images/models/yi_dark.png'
 import { getProviderByModel } from '@renderer/services/AssistantService'
+import WebSearchService from '@renderer/services/WebSearchService'
 import { Assistant, Model } from '@renderer/types'
 import OpenAI from 'openai'
 
@@ -2270,6 +2271,9 @@ export function isGenerateImageModel(model: Model): boolean {
 }
 
 export function getOpenAIWebSearchParams(assistant: Assistant, model: Model): Record<string, any> {
+  if (WebSearchService.isWebSearchEnabled() && WebSearchService.isOverwriteEnabled()) {
+    return {}
+  }
   if (isWebSearchModel(model)) {
     if (assistant.enableWebSearch) {
       const webSearchTools = getWebSearchTools(model)
diff --git a/src/renderer/src/pages/home/Inputbar/Inputbar.tsx b/src/renderer/src/pages/home/Inputbar/Inputbar.tsx
index 5fb739e9..63f23bc7 100644
--- a/src/renderer/src/pages/home/Inputbar/Inputbar.tsx
+++ b/src/renderer/src/pages/home/Inputbar/Inputbar.tsx
@@ -777,20 +777,33 @@ const Inputbar: FC<Props> = ({ assistant: _assistant, setActiveTopic, topic }) =
     })
   }
 
-  const onEnableWebSearch = () => {
-    if (!isWebSearchModel(model)) {
-      if (!WebSearchService.isWebSearchEnabled()) {
-        window.modal.confirm({
-          title: t('chat.input.web_search.enable'),
-          content: t('chat.input.web_search.enable_content'),
-          centered: true,
-          okText: t('chat.input.web_search.button.ok'),
-          onOk: () => {
-            navigate('/settings/web-search')
-          }
-        })
-        return
+  const showWebSearchEnableModal = () => {
+    window.modal.confirm({
+      title: t('chat.input.web_search.enable'),
+      content: t('chat.input.web_search.enable_content'),
+      centered: true,
+      okText: t('chat.input.web_search.button.ok'),
+      onOk: () => {
+        navigate('/settings/web-search')
       }
+    })
+  }
+
+  const shouldShowEnableModal = () => {
+    // 网络搜索功能是否未启用
+    const webSearchNotEnabled = !WebSearchService.isWebSearchEnabled()
+    // 非网络搜索模型：仅当网络搜索功能未启用时显示启用提示
+    if (!isWebSearchModel(model)) {
+      return webSearchNotEnabled
+    }
+    // 网络搜索模型：当允许覆盖但网络搜索功能未启用时显示启用提示
+    return WebSearchService.isOverwriteEnabled() && webSearchNotEnabled
+  }
+
+  const onEnableWebSearch = () => {
+    if (shouldShowEnableModal()) {
+      showWebSearchEnableModal()
+      return
     }
 
     updateAssistant({ ...assistant, enableWebSearch: !assistant.enableWebSearch })
diff --git a/src/renderer/src/services/ApiService.ts b/src/renderer/src/services/ApiService.ts
index 22763f89..c87b7856 100644
--- a/src/renderer/src/services/ApiService.ts
+++ b/src/renderer/src/services/ApiService.ts
@@ -58,11 +58,7 @@ export async function fetchChatCompletion({
 
     // Search web
     if (WebSearchService.isWebSearchEnabled() && assistant.enableWebSearch && assistant.model) {
-      let webSearchParams = getOpenAIWebSearchParams(assistant, assistant.model)
-      if (WebSearchService.isOverwriteEnabled()) {
-        webSearchParams = {}
-      }
-
+      const webSearchParams = getOpenAIWebSearchParams(assistant, assistant.model)
       if (isEmpty(webSearchParams) && !isOpenAIWebSearch(assistant.model)) {
         const lastMessage = findLast(messages, (m) => m.role === 'user')
         const lastAnswer = findLast(messages, (m) => m.role === 'assistant')
diff --git a/src/renderer/src/store/websearch.ts b/src/renderer/src/store/websearch.ts
index d31edf51..aa63edbc 100644
--- a/src/renderer/src/store/websearch.ts
+++ b/src/renderer/src/store/websearch.ts
@@ -41,7 +41,7 @@ const initialState: WebSearchState = {
   maxResults: 5,
   excludeDomains: [],
   enhanceMode: false,
-  overwrite: true
+  overwrite: false
 }
 
 const websearchSlice = createSlice({