diff --git a/src/backup.sh b/src/backup.sh
new file mode 100644
index 0000000..ce1fcda
--- /dev/null
+++ b/src/backup.sh
@@ -0,0 +1,97 @@
+## backup config
+_bakcup() {
+    for keys in $*; do
+        case $keys in
+        v2ray_transport)
+            sed -i "/v2ray_transport=$v2ray_transport/v2ray_transport=$v2ray_transport_opt/" $backup
+            ;;
+        v2ray_port)
+            sed -i "/v2ray_port=$v2ray_port/v2ray_port=$v2ray_port_opt/" $backup
+            ;;
+        uuid)
+            sed -i "/v2ray_id=$v2ray_id/v2ray_id=$uuid/" $backup
+            ;;
+        alterId)
+            sed -i "/alterId=$alterId/alterId=$new_alterId/" $backup
+            ;;
+        v2ray_dynamicPort_start)
+            sed -i "/v2ray_dynamicPort_start=$v2ray_dynamicPort_start/v2ray_dynamicPort_start=$v2ray_dynamic_port_start_input/" $backup
+            ;;
+        v2ray_dynamicPort_end)
+            sed -i "/v2ray_dynamicPort_end=$v2ray_dynamicPort_end/v2ray_dynamicPort_end=$v2ray_dynamic_port_end_input/" $backup
+            ;;
+        domain)
+            sed -i "/domain=$domain/domain=$new_domain/" $backup
+            ;;
+        caddy)
+            sed -i "/caddy=/caddy=true/" $backup
+            ;;
+        +ss)
+            sed -i "/shadowsocks=/shadowsocks=true/; /ssport=$ssport/ssport=$new_ssport/; /sspass=$sspass/sspass=$new_sspass/; /ssciphers=$ssciphers/ssciphers=$new_ssciphers/" $backup
+            ;;
+        -ss)
+            sed -i "/shadowsocks=true/shadowsocks=/" $backup
+            ;;
+        ssport)
+            sed -i "/ssport=$ssport/ssport=$new_ssport/" $backup
+            ;;
+        sspass)
+            sed -i "/sspass=$sspass/sspass=$new_sspass/" $backup
+            ;;
+        ssciphers)
+            sed -i "/ssciphers=$ssciphers/ssciphers=$new_ssciphers/" $backup
+            ;;
+        +ad)
+            sed -i "/ban_ad=/ban_ad=true/" $backup
+            ;;
+        -ad)
+            sed -i "/ban_ad=true/ban_ad=/" $backup
+            ;;
+        +path)
+            sed -i "/path_status=/path_status=true/; /path=$path/path=$new_path/; #proxy_site=$proxy_site#proxy_site=$new_proxy_site#" $backup
+            ;;
+        -path)
+            sed -i "/path_status=true/path_status=/" $backup
+            ;;
+        path)
+            sed -i "/path=$path/path=$new_path/" $backup
+            ;;
+        proxy_site)
+            sed -i "#proxy_site=$proxy_site#proxy_site=$new_proxy_site#" $backup
+            ;;
+        +socks)
+            sed -i "/socks=/socks=true/; /socks_port=$socks_port/socks_port=$new_socks_port/; /socks_username=$socks_username/socks_username=$new_socks_username/; /socks_userpass=$socks_userpass/socks_userpass=$new_socks_userpass/;" $backup
+            ;;
+        -socks)
+            sed -i "/socks=true/socks=/" $backup
+            ;;
+        socks_port)
+            sed -i "/socks_port=$socks_port/socks_port=$new_socks_port/" $backup
+            ;;
+        socks_username)
+            sed -i "/socks_username=$socks_username/socks_username=$new_socks_username/" $backup
+            ;;
+        socks_userpass)
+            sed -i "/socks_userpass=$socks_userpass/socks_userpass=$new_socks_userpass/" $backup
+            ;;
+        +mtproto)
+            sed -i "/mtproto=/mtproto=true/; /mtproto_port=$mtproto_port/mtproto_port=$new_mtproto_port/; /mtproto_secret=$mtproto_secret/mtproto_secret=$new_mtproto_secret/" $backup
+            ;;
+        -mtproto)
+            sed -i "/mtproto=true/mtproto=/" $backup
+            ;;
+        mtproto_port)
+            sed -i "/mtproto_port=$mtproto_port/mtproto_port=$new_mtproto_port/" $backup
+            ;;
+        mtproto_secret)
+            sed -i "/mtproto_secret=$mtproto_secret/mtproto_secret=$new_mtproto_secret/" $backup
+            ;;
+        +bt)
+            sed -i "/ban_bt=/ban_bt=true/" $backup
+            ;;
+        -bt)
+            sed -i "/ban_bt=true/ban_bt=/" $backup
+            ;;
+        esac
+    done
+}
diff --git a/v2ray.sh b/v2ray.sh
index 7f44652..22607d0 100644
--- a/v2ray.sh
+++ b/v2ray.sh
@@ -2752,100 +2752,8 @@ config() {
 	do_service restart v2ray
 }
 backup_config() {
-	for keys in $*; do
-		case $keys in
-		v2ray_transport)
-			sed -i "18s/=$v2ray_transport/=$v2ray_transport_opt/" $backup
-			;;
-		v2ray_port)
-			sed -i "21s/=$v2ray_port/=$v2ray_port_opt/" $backup
-			;;
-		uuid)
-			sed -i "24s/=$v2ray_id/=$uuid/" $backup
-			;;
-		alterId)
-			sed -i "27s/=$alterId/=$new_alterId/" $backup
-			;;
-		v2ray_dynamicPort_start)
-			sed -i "30s/=$v2ray_dynamicPort_start/=$v2ray_dynamic_port_start_input/" $backup
-			;;
-		v2ray_dynamicPort_end)
-			sed -i "33s/=$v2ray_dynamicPort_end/=$v2ray_dynamic_port_end_input/" $backup
-			;;
-		domain)
-			sed -i "36s/=$domain/=$new_domain/" $backup
-			;;
-		caddy)
-			sed -i "39s/=/=true/" $backup
-			;;
-		+ss)
-			sed -i "42s/=/=true/; 45s/=$ssport/=$new_ssport/; 48s/=$sspass/=$new_sspass/; 51s/=$ssciphers/=$new_ssciphers/" $backup
-			;;
-		-ss)
-			sed -i "42s/=true/=/" $backup
-			;;
-		ssport)
-			sed -i "45s/=$ssport/=$new_ssport/" $backup
-			;;
-		sspass)
-			sed -i "48s/=$sspass/=$new_sspass/" $backup
-			;;
-		ssciphers)
-			sed -i "51s/=$ssciphers/=$new_ssciphers/" $backup
-			;;
-		+ad)
-			sed -i "54s/=/=true/" $backup
-			;;
-		-ad)
-			sed -i "54s/=true/=/" $backup
-			;;
-		+path)
-			sed -i "57s/=/=true/; 60s/=$path/=$new_path/; 63s#=$proxy_site#=$new_proxy_site#" $backup
-			;;
-		-path)
-			sed -i "57s/=true/=/" $backup
-			;;
-		path)
-			sed -i "60s/=$path/=$new_path/" $backup
-			;;
-		proxy_site)
-			sed -i "63s#=$proxy_site#=$new_proxy_site#" $backup
-			;;
-		+socks)
-			sed -i "66s/=/=true/; 69s/=$socks_port/=$new_socks_port/; 72s/=$socks_username/=$new_socks_username/; 75s/=$socks_userpass/=$new_socks_userpass/;" $backup
-			;;
-		-socks)
-			sed -i "66s/=true/=/" $backup
-			;;
-		socks_port)
-			sed -i "69s/=$socks_port/=$new_socks_port/" $backup
-			;;
-		socks_username)
-			sed -i "72s/=$socks_username/=$new_socks_username/" $backup
-			;;
-		socks_userpass)
-			sed -i "75s/=$socks_userpass/=$new_socks_userpass/" $backup
-			;;
-		+mtproto)
-			sed -i "78s/=/=true/; 81s/=$mtproto_port/=$new_mtproto_port/; 84s/=$mtproto_secret/=$new_mtproto_secret/" $backup
-			;;
-		-mtproto)
-			sed -i "78s/=true/=/" $backup
-			;;
-		mtproto_port)
-			sed -i "81s/=$mtproto_port/=$new_mtproto_port/" $backup
-			;;
-		mtproto_secret)
-			sed -i "84s/=$mtproto_secret/=$new_mtproto_secret/" $backup
-			;;
-		+bt)
-			sed -i "87s/=/=true/" $backup
-			;;
-		-bt)
-			sed -i "87s/=true/=/" $backup
-			;;
-		esac
-	done
+	_load backup.sh
+	_backup "$@"
 
 }