diff --git a/README.md b/README.md
index ea70a75..bb589e8 100644
--- a/README.md
+++ b/README.md
@@ -81,6 +81,10 @@ clash -u #uninstall
 clash -t #test mode
 ```
 
+~**Install in Docker：**<br>
+
+Use: https://github.com/echvoyager/shellclash_docker
+
 ~**Additional dependencies at runtime**：<br>
 
 ```
diff --git a/README_CN.md b/README_CN.md
index 847b890..27f6bfa 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -84,6 +84,10 @@ clash -u #卸载脚本
 clash -t #测试模式运行
 ```
 
+~**DOCKER环境下安装：**<br>
+
+请参考https://github.com/echvoyager/shellclash_docker
+
 ~**运行时的额外依赖**：<br>
 
 `大部分的设备/系统都已经预装了以下的大部分依赖，使用时如无影响可以无视之`
diff --git a/bin/clashfm.tar.gz b/bin/clashfm.tar.gz
index 96e8855..294eb28 100644
Binary files a/bin/clashfm.tar.gz and b/bin/clashfm.tar.gz differ
diff --git a/scripts/clash.sh b/scripts/clash.sh
index 4cf6dd0..fad1157 100644
--- a/scripts/clash.sh
+++ b/scripts/clash.sh
@@ -1167,9 +1167,9 @@ tools(){
 	echo -----------------------------------------------
 	echo -e " 1 ShellClash测试菜单"
 	[ -f "/etc/firewall.user" ] && echo -e " 2 \033[32m配置\033[0m外网访问SSH"
-	#echo -e " 3 配置DDNS服务:	\033[36m$ipv6_support\033[0m	————待施工"
-	[ -x /usr/sbin/otapredownload ] && echo -e " 3 \033[33m$mi_update\033[0m小米系统自动更新"
+	[ -f "/etc/config/ddns" -a -d "/etc/ddns" ] && echo -e " 3 配置DDNS服务(需下载相关脚本)"
 	echo -e " 4 \033[32m流媒体预解析\033[0m————用于解决DNS解锁在TV应用上失效的问题"
+	[ -x /usr/sbin/otapredownload ] && echo -e " 5 \033[33m$mi_update\033[0m小米系统自动更新"
 	echo -----------------------------------------------
 	echo -e " 0 返回上级菜单 \033[0m"
 	echo -----------------------------------------------
@@ -1187,7 +1187,24 @@ tools(){
 		sleep 1
 		tools  
 		
-	elif [ -x /usr/sbin/otapredownload ] && [ "$num" = 3 ]; then	
+	elif [ "$num" = 3 ]; then
+		echo -----------------------------------------------
+		if [ ! -f $clashdir/ShellDDNS.sh ];then
+			echo -e "正在获取在线脚本……"
+			$clashdir/start.sh webget /tmp/ShellDDNS.sh $update_url/tools/ShellDDNS.sh
+			if [ "$?" = "0" ];then
+				mv -f /tmp/ShellDDNS.sh $clashdir/ShellDDNS.sh
+				source $clashdir/ShellDDNS.sh
+			else
+				echo -e "\033[31m文件下载失败！\033[0m"
+			fi
+		else
+			source $clashdir/ShellDDNS.sh
+		fi
+		sleep 1
+		tools  
+		
+	elif [ -x /usr/sbin/otapredownload ] && [ "$num" = 5 ]; then	
 		[ "$mi_update" = "禁用" ] && sed -i "/otapredownload/d" /etc/crontabs/root || echo "15 3,4,5 * * * /usr/sbin/otapredownload >/dev/null 2>&1" >> /etc/crontabs/root	
 		echo -----------------------------------------------
 		echo -e "已\033[33m$mi_update\033[0m小米路由器的自动启动，如未生效，请在官方APP中同步设置！"
diff --git a/tools/ShellDDNS.sh b/tools/ShellDDNS.sh
index 78c6190..5649cf3 100644
--- a/tools/ShellDDNS.sh
+++ b/tools/ShellDDNS.sh
@@ -4,7 +4,7 @@
 ddns_dir=/etc/config/ddns
 tmp_dir=/tmp/ddns_$USER
 
-[ ! -f "$ddns_dir" -o ! -d "/etc/ddns"] && echo -e "本脚本依赖OpenWrt内置的DDNS服务,当前设备无法运行,已退出！" && exit 1
+[ ! -f "$ddns_dir" -o ! -d "/etc/ddns" ] && echo -e "本脚本依赖OpenWrt内置的DDNS服务,当前设备无法运行,已退出！" && exit 1
 echo -----------------------------------------------
 echo -e "\033[30;46m欢迎使用ShellDDNS！\033[0m"
 echo -e "TG群：\033[36;4mhttps://t.me/clashfm\033[0m"