diff --git a/h-hosts-docker.sh b/h-hosts-docker.sh
index e57f47d..aac1826 100644
--- a/h-hosts-docker.sh
+++ b/h-hosts-docker.sh
@@ -51,8 +51,8 @@ if [ ! -f "$DAEMON_FILE" ] || [ ! -s "$DAEMON_FILE" ]; then
 fi
 
 # 2. 备份当前配置文件
-cp "$DAEMON_FILE" "$DAEMON_FILE.bak"
-echo "📄  已将当前配置备份到 '$DAEMON_FILE.bak'"
+cp "$DAEMON_FILE" "$DAEMON_FILE.bak-$(date +%Y%m%d_%H%M%S)"
+echo "📄  已将当前配置备份到 '$DAEMON_FILE.bak-$(date +%Y%m%d_%H%M%S)'"
 
 # 3. 将所有命令行参数转换为 jq 可以使用的 JSON 数组
 #    例如: "host1:ip1" "host2:ip2" -> '["host1:ip1", "host2:ip2"]'