diff --git a/api/core/tools/provider/builtin/wikipedia/tools/wikipedia_search.py b/api/core/tools/provider/builtin/wikipedia/tools/wikipedia_search.py
index 0796cd2392a68b..ef2990bfe45a56 100644
--- a/api/core/tools/provider/builtin/wikipedia/tools/wikipedia_search.py
+++ b/api/core/tools/provider/builtin/wikipedia/tools/wikipedia_search.py
@@ -7,7 +7,6 @@
 
 WIKIPEDIA_MAX_QUERY_LENGTH = 300
 
-
 class WikipediaAPIWrapper:
     """Wrapper around WikipediaAPI.
 
@@ -26,10 +25,7 @@ class WikipediaAPIWrapper:
     def __init__(self, doc_content_chars_max: int = 4000):
         self.doc_content_chars_max = doc_content_chars_max
 
-    def run(self, query: str, lang: str = "") -> str:
-        if lang in wikipedia.languages().keys():
-            self.lang = lang
-
+    def run(self, query: str) -> str:
         wikipedia.set_lang(self.lang)
         wiki_client = wikipedia
 
@@ -57,7 +53,6 @@ def _fetch_page(self, page: str) -> Optional[str]:
         ):
             return None
 
-
 class WikipediaQueryRun:
     """Tool that searches the Wikipedia API."""
 
@@ -76,31 +71,26 @@ def __init__(self, api_wrapper: WikipediaAPIWrapper):
     def _run(
         self,
         query: str,
-        lang: str = "",
     ) -> str:
         """Use the Wikipedia tool."""
-        return self.api_wrapper.run(query, lang)
-
-
+        return self.api_wrapper.run(query)
 class WikiPediaSearchTool(BuiltinTool):
-
-    def _invoke(
-        self,
-        user_id: str,
-        tool_parameters: dict[str, Any],
-    ) -> Union[ToolInvokeMessage, list[ToolInvokeMessage]]:
+    def _invoke(self, 
+                user_id: str, 
+               tool_parameters: dict[str, Any], 
+        ) -> Union[ToolInvokeMessage, list[ToolInvokeMessage]]:
         """
-        invoke tools
+            invoke tools
         """
-        query = tool_parameters.get("query", "")
-        lang = tool_parameters.get("language", "")
+        query = tool_parameters.get('query', '')
         if not query:
-            return self.create_text_message("Please input query")
-
+            return self.create_text_message('Please input query')
+        
         tool = WikipediaQueryRun(
             api_wrapper=WikipediaAPIWrapper(doc_content_chars_max=4000),
         )
 
-        result = tool._run(query, lang)
+        result = tool._run(query)
 
-        return self.create_text_message(self.summary(user_id=user_id, content=result))
+        return self.create_text_message(self.summary(user_id=user_id,content=result))
+    
\ No newline at end of file
diff --git a/api/core/tools/provider/builtin/wikipedia/tools/wikipedia_search.yaml b/api/core/tools/provider/builtin/wikipedia/tools/wikipedia_search.yaml
index 98d002df1c0daa..376163841e3151 100644
--- a/api/core/tools/provider/builtin/wikipedia/tools/wikipedia_search.yaml
+++ b/api/core/tools/provider/builtin/wikipedia/tools/wikipedia_search.yaml
@@ -24,78 +24,5 @@ parameters:
       en_US: key words for searching
       zh_Hans: 查询关键词
       pt_BR: key words for searching
-    llm_description: key words for searching, this should be in the language of "language" parameter
+    llm_description: key words for searching
     form: llm
-  - name: language
-    type: string
-    required: true
-    label:
-      en_US: Language
-      zh_Hans: 语言
-    human_description:
-      en_US: The language of the Wikipedia to be searched
-      zh_Hans: 要搜索的维基百科语言
-    llm_description: >-
-      language of the wikipedia to be searched,
-      only "de" for German,
-      "en" for English,
-      "fr" for French,
-      "hi" for Hindi,
-      "ja" for Japanese,
-      "ko" for Korean,
-      "pl" for Polish,
-      "pt" for Portuguese,
-      "ro" for Romanian,
-      "uk" for Ukrainian,
-      "vi" for Vietnamese,
-      and "zh" for Chinese are supported
-    form: llm
-    options:
-      - value: de
-        label:
-          en_US: German
-          zh_Hans: 德语
-      - value: en
-        label:
-          en_US: English
-          zh_Hans: 英语
-      - value: fr
-        label:
-          en_US: French
-          zh_Hans: 法语
-      - value: hi
-        label:
-          en_US: Hindi
-          zh_Hans: 印地语
-      - value: ja
-        label:
-          en_US: Japanese
-          zh_Hans: 日语
-      - value: ko
-        label:
-          en_US: Korean
-          zh_Hans: 韩语
-      - value: pl
-        label:
-          en_US: Polish
-          zh_Hans: 波兰语
-      - value: pt
-        label:
-          en_US: Portuguese
-          zh_Hans: 葡萄牙语
-      - value: ro
-        label:
-          en_US: Romanian
-          zh_Hans: 罗马尼亚语
-      - value: uk
-        label:
-          en_US: Ukrainian
-          zh_Hans: 乌克兰语
-      - value: vi
-        label:
-          en_US: Vietnamese
-          zh_Hans: 越南语
-      - value: zh
-        label:
-          en_US: Chinese
-          zh_Hans: 中文