diff --git a/lib/pages/home/search_page.dart b/lib/pages/home/search_page.dart
index 1397c8d7..d40bfb1a 100755
--- a/lib/pages/home/search_page.dart
+++ b/lib/pages/home/search_page.dart
@@ -108,7 +108,8 @@ class SearchPageState extends State<SearchPage> with AutomaticKeepAliveClientMix
   }
 
   void search(BuildContext context, String content, {bool isMore = false}) {
-    if (_controller.text?.trim()?.isNotEmpty ?? false) {
+    final String query = filteredSearchQuery(content);
+    if (query?.isNotEmpty ?? false) {
       _focusNode.unfocus();
       _loading = true;
       if (!isMore) {
@@ -137,6 +138,21 @@ class SearchPageState extends State<SearchPage> with AutomaticKeepAliveClientMix
     }
   }
 
+  String filteredSearchQuery(String query) {
+    String result;
+    if (query?.isNotEmpty ?? false) {
+      result = query
+          .replaceAll('+', '')
+          .replaceAll('-', '')
+          .replaceAll('*', '')
+          .replaceAll('/', '')
+          .replaceAll('=', '')
+          .replaceAll('\$', '')
+          .trim();
+    }
+    return result;
+  }
+
   Widget get searchButton => IconButton(
         icon: Icon(Icons.search, size: suSetWidth(30.0)),
         onPressed: () {