diff --git a/scripts/db_sync.py b/scripts/db_sync.py
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+++ b/scripts/db_sync.py
@@ -0,0 +1,134 @@
+import subprocess
+import os
+import datetime
+import sys
+
+from db.mongo_manager import MONGO_DB_URL
+
+# ================= 配置区域 =================
+# 数据库连接信息
+MONGO_HOST = "mongo.lpaconsulting.fr"
+MONGO_PORT = "27017"
+MONGO_DB_NAME = "appointment"  # 你要备份/恢复的数据库名
+MONGO_USER = "appointment"       # 如果没有密码，保持为空字符串 ""
+MONGO_PASS = "Rdv@2022"       # 如果没有密码，保持为空字符串 ""
+
+# 备份存放的根目录
+BACKUP_DIR_ROOT = "./mongo_backups"
+
+# ===========================================
+
+def get_auth_args():
+    """构建认证参数列表"""
+    args = []
+    if MONGO_USER and MONGO_PASS:
+        args.extend(["--username", MONGO_USER, "--password", MONGO_PASS, "--authenticationDatabase", "appointment"])
+    return args
+
+def backup_mongo():
+    """执行备份操作"""
+    # 1. 创建带有时间戳的备份文件夹
+    timestamp = datetime.datetime.now().strftime("%Y-%m-%d_%H-%M-%S")
+    backup_path = os.path.join(BACKUP_DIR_ROOT, timestamp)
+
+    if not os.path.exists(backup_path):
+        os.makedirs(backup_path)
+
+    print(f"[*] 开始备份数据库: {MONGO_DB_NAME} 到 {backup_path} ...")
+
+    # 2. 构建 mongodump 命令
+    # 命令格式: mongodump --host <host> --port <port> --db <db> --out <path> [auth]
+    cmd = [
+        "mongodump",
+        "--host", MONGO_HOST,
+        "--port", MONGO_PORT,
+        "--db", MONGO_DB_NAME,
+        "--out", backup_path
+    ]
+
+    # 添加认证参数
+    cmd.extend(get_auth_args())
+
+    try:
+        # 3. 执行命令
+        result = subprocess.run(cmd, check=True, text=True, capture_output=True)
+        print(f"[+] 备份成功！")
+        print(f"    存储路径: {backup_path}")
+        print(f"    日志: {result.stderr}") # mongodump 通常把进度输出到 stderr
+        return backup_path
+    except subprocess.CalledProcessError as e:
+        print(f"[-] 备份失败: {e}")
+        print(f"    错误信息: {e.stderr}")
+        return None
+
+def restore_mongo(backup_source_path):
+    """
+    执行恢复操作
+    backup_source_path: 备份文件夹的路径 (例如 ./mongo_backups/2023-10-27_10-00-00)
+    """
+    # mongodump 的输出结构通常是: backup_dir/db_name/collection.bson
+    # 所以我们需要指向具体的数据库文件夹，或者指向父文件夹并指定 --db
+
+    target_dir = os.path.join(backup_source_path, MONGO_DB_NAME)
+
+    if not os.path.exists(target_dir):
+        print(f"[-] 错误: 在路径 {backup_source_path} 下找不到数据库 {MONGO_DB_NAME} 的备份文件。")
+        return
+
+    print(f"[*] 开始恢复数据库: {MONGO_DB_NAME} 从 {target_dir} ...")
+
+    # 构建 mongorestore 命令
+    # 命令格式: mongorestore --host <host> --port <port> --db <db> <path_to_bson_files> [auth]
+    cmd = [
+        "mongorestore",
+        "--host", MONGO_HOST,
+        "--port", MONGO_PORT,
+        "--db", MONGO_DB_NAME,
+        "--drop",  # 警告：这会在恢复前删除现有集合，确保数据干净。根据需要移除此项。
+        target_dir
+    ]
+
+    cmd.extend(get_auth_args())
+
+    try:
+        result = subprocess.run(cmd, check=True, text=True, capture_output=True)
+        print(f"[+] 恢复成功！")
+        print(f"    日志: {result.stderr}")
+    except subprocess.CalledProcessError as e:
+        print(f"[-] 恢复失败: {e}")
+        print(f"    错误信息: {e.stderr}")
+
+# ================= 主程序入口 =================
+if __name__ == "__main__":
+    print("请选择操作:")
+    print("1. 备份数据库 (Backup)")
+    print("2. 恢复数据库 (Restore)")
+
+    choice = input("请输入数字 (1/2): ").strip()
+
+    if choice == "1":
+        backup_mongo()
+    elif choice == "2":
+        # 列出所有备份供用户选择
+        if not os.path.exists(BACKUP_DIR_ROOT):
+            print("[-] 没有找到备份目录。")
+        else:
+            backups = sorted(os.listdir(BACKUP_DIR_ROOT))
+            if not backups:
+                print("[-] 目录为空。")
+            else:
+                print("\n可用备份:")
+                for idx, name in enumerate(backups):
+                    print(f"{idx + 1}. {name}")
+
+                try:
+                    idx_choice = int(input("\n请选择要恢复的备份编号: ")) - 1
+                    if 0 <= idx_choice < len(backups):
+                        selected_backup = os.path.join(BACKUP_DIR_ROOT, backups[idx_choice])
+                        restore_mongo(selected_backup)
+                    else:
+                        print("[-] 无效的选择。")
+                except ValueError:
+                    print("[-] 请输入数字。")
+    else:
+        print("[-] 无效输入，退出。")
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