diff --git a/main/xiaozhi-server/core/providers/memory/mem0ai/mem0ai.py b/main/xiaozhi-server/core/providers/memory/mem0ai/mem0ai.py
index 79d0770a..cbf410ae 100644
--- a/main/xiaozhi-server/core/providers/memory/mem0ai/mem0ai.py
+++ b/main/xiaozhi-server/core/providers/memory/mem0ai/mem0ai.py
@@ -38,8 +38,14 @@ class MemoryProvider(MemoryProviderBase):
                     if message.role == "system":
                         continue
 
+                    if message.role == "tool":
+                        continue
+
                     content = message.content
 
+                    if content is None:
+                        continue
+
                     # Extract content from JSON format if present (for ASR with emotion/language tags)
                     # Same logic as in query_memory method
                     try: