diff --git a/deepsearcher/agent/deep_search.py b/deepsearcher/agent/deep_search.py
index a804109..f2e48e3 100644
--- a/deepsearcher/agent/deep_search.py
+++ b/deepsearcher/agent/deep_search.py
@@ -158,7 +158,7 @@ class DeepSearch(BaseAgent):
         self.max_iter = max_iter
         self.route_collection = route_collection
         self.text_window_splitter = text_window_splitter
-        self.web_search = WebSearch() if web_search else None
+        self.web_search = False
 
     def invoke(self, query: str, dim: int, **kwargs) -> list[str]:
         """
@@ -223,7 +223,7 @@ class DeepSearch(BaseAgent):
         content = self.llm.remove_think(content)
         return self.llm.literal_eval(content)
 
-    def _search_chunks(self, query: str) -> list[RetrievalResult]:
+    def _search_chunks(self, query: str, **kwargs) -> list[RetrievalResult]:
         results = []
 
         # 本地向量搜索
@@ -248,6 +248,7 @@ class DeepSearch(BaseAgent):
             send_info(f"本地向量搜索找到 {len(vector_results)} 个结果")
 
         # 网页搜索
+        self.web_search = WebSearch() if kwargs.get('web_search', False) else None
         if self.web_search:
             web_results = self.web_search.search_with_retry(query, size=2)
             if web_results:
@@ -362,7 +363,7 @@ class DeepSearch(BaseAgent):
 
             # Execute all search tasks sequentially
             for query in sub_queries:
-                results = self._search_chunks(query)
+                results = self._search_chunks(query, **kwargs)
                 all_search_results.extend(results)
 
 
diff --git a/deepsearcher/online_query.py b/deepsearcher/online_query.py
index 48203a5..3ca20af 100644
--- a/deepsearcher/online_query.py
+++ b/deepsearcher/online_query.py
@@ -21,7 +21,8 @@ def query(original_query: str, **kwargs) -> tuple[str, list[RetrievalResult]]:
     """
     default_searcher = configuration.default_searcher
     max_iter = kwargs.get("max_iter", 3)
-    return default_searcher.query(original_query, max_iter=max_iter)
+    web_search = kwargs.get("web_search", False)
+    return default_searcher.query(original_query, max_iter=max_iter, web_search=web_search)
 
 
 def retrieve(original_query: str, max_iter: int | None = None) -> tuple[list[RetrievalResult], list[str]]:
diff --git a/deepsearcher/templates/html/index.html b/deepsearcher/templates/html/index.html
index 64323c8..418fbd8 100644
--- a/deepsearcher/templates/html/index.html
+++ b/deepsearcher/templates/html/index.html
@@ -86,6 +86,18 @@
               value="3"
             />
           </div>
+          <div class="form-group">
+            <label class="checkbox-label">
+              <input
+                type="checkbox"
+                id="webSearch"
+              />
+              启用网络搜索
+            </label>
+            <small style="color: var(--text-secondary); display: block; margin-top: 4px;">
+              启用后将同时搜索本地文档和网络内容，提供更全面的答案
+            </small>
+          </div>
           <button id="queryBtn">执行查询</button>
           <button
             id="clearMessagesBtn"
diff --git a/deepsearcher/templates/static/css/styles.css b/deepsearcher/templates/static/css/styles.css
index bd1af54..df1e302 100644
--- a/deepsearcher/templates/static/css/styles.css
+++ b/deepsearcher/templates/static/css/styles.css
@@ -84,6 +84,24 @@ label {
   font-weight: 500;
 }
 
+.checkbox-label {
+  display: flex !important;
+  align-items: center;
+  cursor: pointer;
+  font-weight: 500;
+  margin-bottom: 8px;
+  flex-direction: row;
+  gap: 8px;
+}
+
+.checkbox-label input[type="checkbox"] {
+  width: 16px;
+  height: 16px;
+  margin: 0;
+  cursor: pointer;
+  flex-shrink: 0;
+}
+
 input,
 textarea,
 select {
diff --git a/deepsearcher/templates/static/js/app.js b/deepsearcher/templates/static/js/app.js
index 5b35a17..2cf8e6c 100644
--- a/deepsearcher/templates/static/js/app.js
+++ b/deepsearcher/templates/static/js/app.js
@@ -366,6 +366,7 @@ document
     const button = this;
     const queryText = document.getElementById('queryText').value;
     const maxIter = parseInt(document.getElementById('maxIter').value);
+    const webSearch = document.getElementById('webSearch').checked;
 
     if (!queryText) {
       showStatus('queryStatus', '请输入查询问题', 'error');
@@ -407,7 +408,7 @@ document
       const eventSource = new EventSource(
         `/query-stream/?original_query=${encodeURIComponent(
           queryText
-        )}&max_iter=${maxIter}`
+        )}&max_iter=${maxIter}&web_search=${webSearch}`
       );
 
       // 保存EventSource引用以便后续关闭
diff --git a/main.py b/main.py
index abb0a43..3b6da71 100644
--- a/main.py
+++ b/main.py
@@ -159,6 +159,11 @@ async def perform_query_stream(
         ge=1,
         examples=[3],
     ),
+    web_search: bool = Query(
+        False,
+        description="Whether to enable web search functionality.",
+        examples=[True, False],
+    ),
 ) -> StreamingResponse:
     """
     Perform a query with real-time streaming of progress and results.
@@ -166,6 +171,7 @@ async def perform_query_stream(
     Args:
         original_query (str): The user's question or query.
         max_iter (int, optional): Maximum number of iterations for reflection. Defaults to 3.
+        web_search (bool, optional): Whether to enable web search functionality. Defaults to False.
 
     Returns:
         StreamingResponse: A streaming response with real-time query progress and results.
@@ -199,7 +205,7 @@ async def perform_query_stream(
             def run_query():
                 try:
                     print(f"Starting query: {original_query} with max_iter: {max_iter}")
-                    result_text, retrieval_results = query(original_query, max_iter=max_iter)
+                    result_text, retrieval_results = query(original_query, max_iter=max_iter, web_search=web_search)
                     print(f"Query completed with result length: {len(result_text) if result_text else 0}")
                     print(f"Retrieved {len(retrieval_results) if retrieval_results else 0} documents")
                     return result_text, None