diff --git a/src/routes/geminiRoutes.js b/src/routes/geminiRoutes.js
index 86932821..ca5eb7d9 100644
--- a/src/routes/geminiRoutes.js
+++ b/src/routes/geminiRoutes.js
@@ -415,9 +415,27 @@ async function handleGenerateContent(req, res) {
     const { model, project, user_prompt_id, request: requestData } = req.body;
     const sessionHash = sessionHelper.generateSessionHash(req.body);
     console.log(321, requestData);
+    
+    // 处理 OpenAI 格式请求（没有 request 字段的情况）
+    let actualRequestData = requestData;
+    if (!requestData && req.body.messages) {
+      // 这是 OpenAI 格式的请求，构建 Gemini 格式的 request 对象
+      actualRequestData = {
+        contents: req.body.messages.map(msg => ({
+          role: msg.role === 'assistant' ? 'model' : msg.role,
+          parts: [{ text: msg.content }]
+        })),
+        generationConfig: {
+          temperature: req.body.temperature,
+          maxOutputTokens: req.body.max_tokens,
+          topP: req.body.top_p,
+          topK: req.body.top_k
+        }
+      };
+    }
 
     // 验证必需参数
-    if (!requestData || !requestData.contents) {
+    if (!actualRequestData || !actualRequestData.contents) {
       return res.status(400).json({
         error: {
           message: 'Request contents are required',
@@ -442,7 +460,7 @@ async function handleGenerateContent(req, res) {
     const client = await geminiAccountService.getOauthClient(accessToken, refreshToken);
     const response = await geminiAccountService.generateContent(
       client,
-      { model, request: requestData },
+      { model, request: actualRequestData },
       user_prompt_id,
       project || account.projectId,
       req.apiKey?.id // 使用 API Key ID 作为 session ID
@@ -469,8 +487,26 @@ async function handleStreamGenerateContent(req, res) {
     const { model, project, user_prompt_id, request: requestData } = req.body;
     const sessionHash = sessionHelper.generateSessionHash(req.body);
 
+    // 处理 OpenAI 格式请求（没有 request 字段的情况）
+    let actualRequestData = requestData;
+    if (!requestData && req.body.messages) {
+      // 这是 OpenAI 格式的请求，构建 Gemini 格式的 request 对象
+      actualRequestData = {
+        contents: req.body.messages.map(msg => ({
+          role: msg.role === 'assistant' ? 'model' : msg.role,
+          parts: [{ text: msg.content }]
+        })),
+        generationConfig: {
+          temperature: req.body.temperature,
+          maxOutputTokens: req.body.max_tokens,
+          topP: req.body.top_p,
+          topK: req.body.top_k
+        }
+      };
+    }
+
     // 验证必需参数
-    if (!requestData || !requestData.contents) {
+    if (!actualRequestData || !actualRequestData.contents) {
       return res.status(400).json({
         error: {
           message: 'Request contents are required',
@@ -506,7 +542,7 @@ async function handleStreamGenerateContent(req, res) {
     const client = await geminiAccountService.getOauthClient(accessToken, refreshToken);
     const streamResponse = await geminiAccountService.generateContentStream(
       client,
-      { model, request: requestData },
+      { model, request: actualRequestData },
       user_prompt_id,
       project || account.projectId,
       req.apiKey?.id, // 使用 API Key ID 作为 session ID