diff --git a/packages/adapters/redis/session_store.py b/packages/adapters/redis/session_store.py
old mode 100755
new mode 100644
index 9c8815e4c..0ba0aa253
--- a/packages/adapters/redis/session_store.py
+++ b/packages/adapters/redis/session_store.py
@@ -4,6 +4,7 @@ Redis Session 存储
 """
 
 import json
+import logging
 from datetime import datetime, timedelta, timezone
 from typing import Optional
 
@@ -12,6 +13,8 @@ from redis import Redis
 
 from packages.domain.auth.session_store import SessionStorePort
 
+logger = logging.getLogger(__name__)
+
 
 class RedisConfig:
     """Redis 配置"""
@@ -147,7 +150,7 @@ class SessionStore(SessionStorePort):
 
             return True
         except Exception as e:
-            print(f"Failed to save session: {e}")
+            logger.warning(f"Redis session save failed: {e}")
             return False
 
     def get_session(self, session_id: str) -> Optional[dict]:
@@ -168,7 +171,7 @@ class SessionStore(SessionStorePort):
                 return json.loads(data)
             return None
         except Exception as e:
-            print(f"Failed to get session: {e}")
+            logger.warning(f"Redis session get failed: {e}")
             return None
 
     def get_session_by_refresh_token(self, refresh_token: str) -> Optional[dict]:
@@ -192,7 +195,7 @@ class SessionStore(SessionStorePort):
             # 再获取完整的 session 数据
             return self.get_session(session_id)
         except Exception as e:
-            print(f"Failed to get session by refresh_token: {e}")
+            logger.warning(f"Redis session get by refresh failed: {e}")
             return None
 
     def get_refresh_token(self, session_id: str) -> Optional[str]:
@@ -209,7 +212,7 @@ class SessionStore(SessionStorePort):
             refresh_token_key = self._refresh_token_key(session_id)
             return self.redis.get(refresh_token_key)
         except Exception as e:
-            print(f"Failed to get refresh_token: {e}")
+            logger.warning(f"Redis refresh token get failed: {e}")
             return None
 
     def update_last_active(self, session_id: str) -> bool:
@@ -238,7 +241,7 @@ class SessionStore(SessionStorePort):
 
             return False
         except Exception as e:
-            print(f"Failed to update last active: {e}")
+            logger.warning(f"Redis session update active failed: {e}")
             return False
 
     def delete_session(self, session_id: str) -> bool:
@@ -278,7 +281,7 @@ class SessionStore(SessionStorePort):
 
             return True
         except Exception as e:
-            print(f"Failed to delete session: {e}")
+            logger.warning(f"Redis session delete failed: {e}")
             return False
 
     def get_user_sessions(self, user_id: str) -> list[dict]:
@@ -303,7 +306,7 @@ class SessionStore(SessionStorePort):
 
             return sessions
         except Exception as e:
-            print(f"Failed to get user sessions: {e}")
+            logger.warning(f"Redis user sessions list failed: {e}")
             return []
 
     def delete_all_user_sessions(self, user_id: str) -> int:
@@ -330,7 +333,7 @@ class SessionStore(SessionStorePort):
 
             return count
         except Exception as e:
-            print(f"Failed to delete all user sessions: {e}")
+            logger.warning(f"Redis user sessions delete failed: {e}")
             return 0
 
     def session_exists(self, session_id: str) -> bool:
diff --git a/packages/application/auth/password_reset_use_case.py b/packages/application/auth/password_reset_use_case.py
old mode 100755
new mode 100644
index ec351907b..c8ce88032
--- a/packages/application/auth/password_reset_use_case.py
+++ b/packages/application/auth/password_reset_use_case.py
@@ -2,6 +2,7 @@
 密码重置 Use Case
 """
 
+import logging
 import secrets
 from datetime import datetime, timedelta, timezone
 from typing import Optional
@@ -9,6 +10,8 @@ from typing import Optional
 from packages.adapters.smtp import get_email_service
 from packages.application.auth.password_hasher import password_hasher, password_validator
 
+logger = logging.getLogger(__name__)
+
 
 class RequestPasswordResetRequest:
     """请求密码重置"""
@@ -82,10 +85,10 @@ class RequestPasswordResetUseCase:
                 )
 
                 if not success:
-                    print(f"Failed to send password reset email: {error}")
+                    logger.warning(f"Password reset email failed: {error}")
                     # 不返回错误，避免暴露用户存在性
             except Exception as e:
-                print(f"Email service error: {e}")
+                logger.error(f"Email service error: {e}", exc_info=True)
 
             return True, None
 
diff --git a/packages/application/auth/register_user_use_case.py b/packages/application/auth/register_user_use_case.py
old mode 100755
new mode 100644
index ae2ed6d13..25de08e4a
--- a/packages/application/auth/register_user_use_case.py
+++ b/packages/application/auth/register_user_use_case.py
@@ -2,6 +2,7 @@
 用户注册 Use Case
 """
 
+import logging
 import secrets
 from datetime import datetime, timezone
 from typing import Optional
@@ -11,6 +12,8 @@ from packages.adapters.smtp import get_email_service
 from packages.application.auth.password_hasher import password_hasher, password_validator
 from packages.domain.entities import User
 
+logger = logging.getLogger(__name__)
+
 
 class RegisterUserRequest:
     """注册请求"""
@@ -136,9 +139,9 @@ class RegisterUserUseCase:
                 email_sent = success
 
                 if not success:
-                    print(f"Failed to send verification email: {error}")
+                    logger.warning(f"Verification email failed: {error}")
             except Exception as e:
-                print(f"Email service error: {e}")
+                logger.error(f"Email service error: {e}", exc_info=True)
 
             # 10. 返回响应（即使邮件发送失败，用户也已创建）
             return (