diff --git a/src/chat/interest_system/bot_interest_manager.py b/src/chat/interest_system/bot_interest_manager.py
index 66965c421..959796a51 100644
--- a/src/chat/interest_system/bot_interest_manager.py
+++ b/src/chat/interest_system/bot_interest_manager.py
@@ -1023,8 +1023,10 @@ class BotInterestManager:
                 return None
 
             # 读取缓存文件
-            with open(cache_file, "rb") as f:
-                cache_data = orjson.loads(f.read())
+            import aiofiles
+            async with aiofiles.open(cache_file, "rb") as f:
+                content = await f.read()
+                cache_data = orjson.loads(content)
 
             # 验证缓存版本和embedding模型
             cache_version = cache_data.get("version", 1)
@@ -1074,8 +1076,9 @@ class BotInterestManager:
             }
 
             # 写入文件
-            with open(cache_file, "wb") as f:
-                f.write(orjson.dumps(cache_data, option=orjson.OPT_INDENT_2))
+            import aiofiles
+            async with aiofiles.open(cache_file, "wb") as f:
+                await f.write(orjson.dumps(cache_data, option=orjson.OPT_INDENT_2))
 
             logger.debug(f"💾 已保存 {len(self.embedding_cache)} 个标签embedding和 {len(self.expanded_embedding_cache)} 个扩展embedding到缓存文件: {cache_file}")
 
diff --git a/src/memory_graph/storage/persistence.py b/src/memory_graph/storage/persistence.py
index bb6dc2946..23b6a0735 100644
--- a/src/memory_graph/storage/persistence.py
+++ b/src/memory_graph/storage/persistence.py
@@ -9,6 +9,7 @@ import json
 from datetime import datetime
 from pathlib import Path
 
+import aiofiles
 import orjson
 
 from src.common.logger import get_logger
@@ -84,7 +85,8 @@ class PersistenceManager:
 
             # 原子写入（先写临时文件，再重命名）
             temp_file = self.graph_file.with_suffix(".tmp")
-            temp_file.write_bytes(json_data)
+            async with aiofiles.open(temp_file, "wb") as f:
+                await f.write(json_data)
             temp_file.replace(self.graph_file)
 
             logger.info(f"图数据已保存: {self.graph_file}, 大小: {len(json_data) / 1024:.2f} KB")
@@ -106,7 +108,8 @@ class PersistenceManager:
 
         try:
             # 读取文件
-            json_data = self.graph_file.read_bytes()
+            async with aiofiles.open(self.graph_file, "rb") as f:
+                json_data = await f.read()
             data = orjson.loads(json_data)
 
             # 检查版本（未来可能需要数据迁移）
@@ -144,7 +147,8 @@ class PersistenceManager:
             json_data = orjson.dumps(data, option=orjson.OPT_INDENT_2 | orjson.OPT_SERIALIZE_NUMPY)
 
             temp_file = self.staged_file.with_suffix(".tmp")
-            temp_file.write_bytes(json_data)
+            async with aiofiles.open(temp_file, "wb") as f:
+                await f.write(json_data)
             temp_file.replace(self.staged_file)
 
             logger.info(f"临时记忆已保存: {len(staged_memories)} 条")
@@ -165,7 +169,8 @@ class PersistenceManager:
             return []
 
         try:
-            json_data = self.staged_file.read_bytes()
+            async with aiofiles.open(self.staged_file, "rb") as f:
+                json_data = await f.read()
             data = orjson.loads(json_data)
 
             staged_memories = [StagedMemory.from_dict(sm) for sm in data.get("staged_memories", [])]
@@ -190,9 +195,10 @@ class PersistenceManager:
 
             if self.graph_file.exists():
                 # 复制图数据文件
-                import shutil
-
-                shutil.copy2(self.graph_file, backup_file)
+                async with aiofiles.open(self.graph_file, "rb") as src:
+                    async with aiofiles.open(backup_file, "wb") as dst:
+                        while chunk := await src.read(8192):
+                            await dst.write(chunk)
 
                 # 清理旧备份（只保留最近10个）
                 await self._cleanup_old_backups(keep=10)
@@ -219,7 +225,8 @@ class PersistenceManager:
             latest_backup = backup_files[0]
             logger.warning(f"尝试从备份恢复: {latest_backup}")
 
-            json_data = latest_backup.read_bytes()
+            async with aiofiles.open(latest_backup, "rb") as f:
+                json_data = await f.read()
             data = orjson.loads(json_data)
 
             graph_store = GraphStore.from_dict(data)
@@ -323,8 +330,9 @@ class PersistenceManager:
 
             # 使用标准 json 以获得更好的可读性
             output_file.parent.mkdir(parents=True, exist_ok=True)
-            with output_file.open("w", encoding="utf-8") as f:
-                json.dump(data, f, ensure_ascii=False, indent=2)
+            async with aiofiles.open(output_file, "w", encoding="utf-8") as f:
+                json_str = json.dumps(data, ensure_ascii=False, indent=2)
+                await f.write(json_str)
 
             logger.info(f"图数据已导出: {output_file}")
 
@@ -343,8 +351,9 @@ class PersistenceManager:
             GraphStore 对象
         """
         try:
-            with input_file.open("r", encoding="utf-8") as f:
-                data = json.load(f)
+            async with aiofiles.open(input_file, "r", encoding="utf-8") as f:
+                content = await f.read()
+                data = json.loads(content)
 
             graph_store = GraphStore.from_dict(data)
             logger.info(f"图数据已导入: {graph_store.get_statistics()}")