diff --git a/backend/main/xiaozhi-server/core/providers/llm/antaf/antaf.py b/backend/main/xiaozhi-server/core/providers/llm/antaf/antaf.py
index ddc6900..cb8c1f3 100644
--- a/backend/main/xiaozhi-server/core/providers/llm/antaf/antaf.py
+++ b/backend/main/xiaozhi-server/core/providers/llm/antaf/antaf.py
@@ -1,3 +1,4 @@
+import json
 import requests
 from config.logger import setup_logging
 from core.providers.llm.base import LLMProviderBase
@@ -61,7 +62,15 @@ class LLMProvider(LLMProviderBase):
             if msg.get("role") == "user":
                 content = msg.get("content", "")
                 if not self._is_system_injected(content):
-                    query = content
+                    # ASR 结果可能是 JSON: {"content":"...", "language":"zh", "emotion":"..."}
+                    try:
+                        parsed = json.loads(content)
+                        if isinstance(parsed, dict) and "content" in parsed:
+                            query = parsed["content"]
+                        else:
+                            query = content
+                    except (json.JSONDecodeError, TypeError):
+                        query = content
                     break
 
         if not query: