diff --git a/luci-app-passwall/luasrc/model/cbi/passwall/client/global.lua b/luci-app-passwall/luasrc/model/cbi/passwall/client/global.lua
index 174df8b2e..d33a67969 100644
--- a/luci-app-passwall/luasrc/model/cbi/passwall/client/global.lua
+++ b/luci-app-passwall/luasrc/model/cbi/passwall/client/global.lua
@@ -19,6 +19,7 @@ end
 
 local normal_list = {}
 local balancing_list = {}
+local urltest_list = {}
 local shunt_list = {}
 local iface_list = {}
 for k, v in pairs(nodes_table) do
@@ -28,6 +29,9 @@ for k, v in pairs(nodes_table) do
 	if v.protocol and v.protocol == "_balancing" then
 		balancing_list[#balancing_list + 1] = v
 	end
+	if v.protocol and v.protocol == "_urltest" then
+		urltest_list[#urltest_list + 1] = v
+	end
 	if v.protocol and v.protocol == "_shunt" then
 		shunt_list[#shunt_list + 1] = v
 	end
@@ -185,6 +189,9 @@ if (has_singbox or has_xray) and #nodes_table > 0 then
 			for k1, v1 in pairs(balancing_list) do
 				o:value(v1.id, v1.remark)
 			end
+			for k1, v1 in pairs(urltest_list) do
+				o:value(v1.id, v1.remark)
+			end
 			for k1, v1 in pairs(iface_list) do
 				o:value(v1.id, v1.remark)
 			end
@@ -226,6 +233,9 @@ if (has_singbox or has_xray) and #nodes_table > 0 then
 					for k1, v1 in pairs(balancing_list) do
 						o:value(v1.id, v1.remark)
 					end
+					for k1, v1 in pairs(urltest_list) do
+						o:value(v1.id, v1.remark)
+					end
 					for k1, v1 in pairs(iface_list) do
 						o:value(v1.id, v1.remark)
 					end
@@ -250,6 +260,9 @@ if (has_singbox or has_xray) and #nodes_table > 0 then
 			for k1, v1 in pairs(balancing_list) do
 				o:value(v1.id, v1.remark)
 			end
+			for k1, v1 in pairs(urltest_list) do
+				o:value(v1.id, v1.remark)
+			end
 			for k1, v1 in pairs(iface_list) do
 				o:value(v1.id, v1.remark)
 			end
@@ -265,7 +278,7 @@ if (has_singbox or has_xray) and #nodes_table > 0 then
 			o:value("", translate("Close"))
 			o:value("main", translate("Preproxy Node"))
 			for k1, v1 in pairs(normal_list) do
-				if v1.protocol ~= "_balancing" then
+				if v1.protocol ~= "_balancing" and v1.protocol ~= "_urltest" then
 					o:depends({ [vid .. "-default_node"] = v1.id, [vid .. "-preproxy_enabled"] = "1" })
 				end
 			end
diff --git a/luci-app-passwall/luasrc/model/cbi/passwall/client/node_list.lua b/luci-app-passwall/luasrc/model/cbi/passwall/client/node_list.lua
index cdde9ba3d..33587b183 100644
--- a/luci-app-passwall/luasrc/model/cbi/passwall/client/node_list.lua
+++ b/luci-app-passwall/luasrc/model/cbi/passwall/client/node_list.lua
@@ -103,6 +103,8 @@ o.cfgvalue = function(t, n)
 		local protocol = m:get(n, "protocol")
 		if protocol == "_balancing" then
 			protocol = translate("Balancing")
+		elseif protocol == "_urltest" then
+			protocol = "URLTest"
 		elseif protocol == "_shunt" then
 			protocol = translate("Shunt")
 		elseif protocol == "vmess" then
diff --git a/luci-app-passwall/luasrc/model/cbi/passwall/client/type/sing-box.lua b/luci-app-passwall/luasrc/model/cbi/passwall/client/type/sing-box.lua
index 7e5ee34a6..d826f3360 100644
--- a/luci-app-passwall/luasrc/model/cbi/passwall/client/type/sing-box.lua
+++ b/luci-app-passwall/luasrc/model/cbi/passwall/client/type/sing-box.lua
@@ -56,6 +56,7 @@ end
 if singbox_tags:find("with_quic") then
 	o:value("hysteria2", "Hysteria2")
 end
+o:value("_urltest", translate("URLTest"))
 o:value("_shunt", translate("Shunt"))
 o:value("_iface", translate("Custom Interface"))
 
@@ -65,6 +66,7 @@ o:depends({ [_n("protocol")] = "_iface" })
 
 local nodes_table = {}
 local iface_table = {}
+local urltest_table = {}
 for k, e in ipairs(api.get_valid_nodes()) do
 	if e.node_type == "normal" then
 		nodes_table[#nodes_table + 1] = {
@@ -79,6 +81,12 @@ for k, e in ipairs(api.get_valid_nodes()) do
 			remark = e["remark"]
 		}
 	end
+	if e.protocol == "_urltest" then
+		urltest_table[#urltest_table + 1] = {
+			id = e[".name"],
+			remark = e["remark"]
+		}
+	end
 end
 
 local socks_list = {}
@@ -91,6 +99,44 @@ m.uci:foreach(appname, "socks", function(s)
 	end
 end)
 
+--[[ URLTest ]]
+o = s:option(DynamicList, _n("urltest_node"), translate("URLTest node list"), translate("List of nodes to test, <a target='_blank' href='https://sing-box.sagernet.org/configuration/outbound/urltest'>document</a>"))
+o:depends({ [_n("protocol")] = "_urltest" })
+for k, v in pairs(nodes_table) do o:value(v.id, v.remark) end
+
+o = s:option(Value, _n("urltest_url"), translate("Probe URL"))
+o:depends({ [_n("protocol")] = "_urltest" })
+o:value("https://cp.cloudflare.com/", "Cloudflare")
+o:value("https://www.gstatic.com/generate_204", "Gstatic")
+o:value("https://www.google.com/generate_204", "Google")
+o:value("https://www.youtube.com/generate_204", "YouTube")
+o:value("https://connect.rom.miui.com/generate_204", "MIUI (CN)")
+o:value("https://connectivitycheck.platform.hicloud.com/generate_204", "HiCloud (CN)")
+o.default = "https://www.gstatic.com/generate_204"
+o.description = translate("The URL used to detect the connection status.")
+
+o = s:option(Value, _n("urltest_interval"), translate("Test interval"))
+o:depends({ [_n("protocol")] = "_urltest" })
+o.datatype = "uinteger"
+o.default = "180"
+o.description = translate("The test interval in seconds.") .. "<br />" ..
+		translate("Test interval must be less or equal than idle timeout.")
+
+o = s:option(Value, _n("urltest_tolerance"), translate("Test tolerance"), translate("The test tolerance in milliseconds."))
+o:depends({ [_n("protocol")] = "_urltest" })
+o.datatype = "uinteger"
+o.default = "50"
+
+o = s:option(Value, _n("urltest_idle_timeout"), translate("Idle timeout"), translate("The idle timeout in seconds."))
+o:depends({ [_n("protocol")] = "_urltest" })
+o.datatype = "uinteger"
+o.default = "1800"
+
+o = s:option(Flag, _n("urltest_interrupt_exist_connections"), translate("Interrupt existing connections"))
+o:depends({ [_n("protocol")] = "_urltest" })
+o.default = "0"
+o.description = translate("Interrupt existing connections when the selected outbound has changed.") 
+
 -- [[ 分流模块 ]]
 if #nodes_table > 0 then
 	o = s:option(Flag, _n("preproxy_enabled"), translate("Preproxy"))
@@ -101,6 +147,9 @@ if #nodes_table > 0 then
 	for k, v in pairs(socks_list) do
 		o:value(v.id, v.remark)
 	end
+	for k, v in pairs(urltest_table) do
+		o:value(v.id, v.remark)
+	end
 	for k, v in pairs(iface_table) do
 		o:value(v.id, v.remark)
 	end
@@ -121,6 +170,9 @@ m.uci:foreach(appname, "shunt_rules", function(e)
 			for k, v in pairs(socks_list) do
 				o:value(v.id, v.remark)
 			end
+			for k, v in pairs(urltest_table) do
+				o:value(v.id, v.remark)
+			end
 			for k, v in pairs(iface_table) do
 				o:value(v.id, v.remark)
 			end
@@ -152,6 +204,9 @@ if #nodes_table > 0 then
 	for k, v in pairs(socks_list) do
 		o:value(v.id, v.remark)
 	end
+	for k, v in pairs(urltest_table) do
+		o:value(v.id, v.remark)
+	end
 	for k, v in pairs(iface_table) do
 		o:value(v.id, v.remark)
 	end
diff --git a/luci-app-passwall/luasrc/passwall/api.lua b/luci-app-passwall/luasrc/passwall/api.lua
index ca3611cdd..f08c7019c 100644
--- a/luci-app-passwall/luasrc/passwall/api.lua
+++ b/luci-app-passwall/luasrc/passwall/api.lua
@@ -384,7 +384,7 @@ function strToTable(str)
 end
 
 function is_normal_node(e)
-	if e and e.type and e.protocol and (e.protocol == "_balancing" or e.protocol == "_shunt" or e.protocol == "_iface") then
+	if e and e.type and e.protocol and (e.protocol == "_balancing" or e.protocol == "_shunt" or e.protocol == "_iface" or e.protocol == "_urltest") then
 		return false
 	end
 	return true
@@ -494,7 +494,7 @@ function get_valid_nodes()
 	uci:foreach(appname, "nodes", function(e)
 		e.id = e[".name"]
 		if e.type and e.remarks then
-			if e.protocol and (e.protocol == "_balancing" or e.protocol == "_shunt" or e.protocol == "_iface") then
+			if e.protocol and (e.protocol == "_balancing" or e.protocol == "_shunt" or e.protocol == "_iface" or e.protocol == "_urltest") then
 				local type = e.type
 				if type == "sing-box" then type = "Sing-Box" end
 				e["remark"] = "%s：[%s] " % {type .. " " .. i18n.translatef(e.protocol), e.remarks}
@@ -544,7 +544,7 @@ end
 function get_node_remarks(n)
 	local remarks = ""
 	if n then
-		if n.protocol and (n.protocol == "_balancing" or n.protocol == "_shunt" or n.protocol == "_iface") then
+		if n.protocol and (n.protocol == "_balancing" or n.protocol == "_shunt" or n.protocol == "_iface" or n.protocol == "_urltest") then
 			remarks = "%s：[%s] " % {n.type .. " " .. i18n.translatef(n.protocol), n.remarks}
 		else
 			local type2 = n.type
diff --git a/luci-app-passwall/luasrc/passwall/util_sing-box.lua b/luci-app-passwall/luasrc/passwall/util_sing-box.lua
index 671974548..bd3a2688c 100644
--- a/luci-app-passwall/luasrc/passwall/util_sing-box.lua
+++ b/luci-app-passwall/luasrc/passwall/util_sing-box.lua
@@ -901,6 +901,54 @@ function gen_config(var)
 			table.insert(inbounds, inbound)
 		end
 
+		local function gen_urltest(_node)
+			local urltest_id = _node[".name"]
+			local urltest_tag = "urltest-" .. urltest_id
+			-- existing urltest
+			for _, v in ipairs(outbounds) do
+				if v.tag == urltest_tag then
+					return urltest_tag
+				end
+			end
+			-- new urltest
+			local ut_nodes = _node.urltest_node
+			local valid_nodes = {}
+			for i = 1, #ut_nodes do
+				local ut_node_id = ut_nodes[i]
+				local ut_node_tag = "ut-" .. ut_node_id
+				local is_new_ut_node = true
+				for _, outbound in ipairs(outbounds) do
+					if string.sub(outbound.tag, 1, #ut_node_tag) == ut_node_tag then
+						is_new_ut_node = false
+						valid_nodes[#valid_nodes + 1] = outbound.tag
+						break
+					end
+				end
+				if is_new_ut_node then
+					local ut_node = uci:get_all(appname, ut_node_id)
+					local outbound = gen_outbound(flag, ut_node, ut_node_tag)
+					if outbound then
+						outbound.tag = outbound.tag .. ":" .. ut_node.remarks
+						table.insert(outbounds, outbound)
+						valid_nodes[#valid_nodes + 1] = outbound.tag
+					end
+				end
+			end
+			if #valid_nodes == 0 then return nil end
+			local outbound = {
+				type = "urltest",
+				tag = urltest_tag,
+				outbounds = valid_nodes,
+				url = _node.urltest_url or "https://www.gstatic.com/generate_204",
+				interval = _node.urltest_interval and tonumber(_node.urltest_interval) and string.format("%dm", tonumber(_node.urltest_interval) / 60) or "3m",
+				tolerance = _node.urltest_tolerance and tonumber(_node.urltest_tolerance) and tonumber(_node.urltest_tolerance) or 50,
+				idle_timeout = _node.urltest_idle_timeout and tonumber(_node.urltest_idle_timeout) and string.format("%dm", tonumber(_node.urltest_idle_timeout) / 60) or "30m",
+				interrupt_exist_connections = (_node.urltest_interrupt_exist_connections == "true" or _node.urltest_interrupt_exist_connections == "1") and true or false
+			}
+			table.insert(outbounds, outbound)
+			return urltest_tag
+		end
+
 		local function set_outbound_detour(node, outbound, outbounds_table, shunt_rule_name)
 			if not node or not outbound or not outbounds_table then return nil end
 			local default_outTag = outbound.tag
@@ -1055,6 +1103,8 @@ function gen_config(var)
 								end
 							end
 						end
+					elseif _node.protocol == "_urltest" then
+						rule_outboundTag = gen_urltest(_node)
 					elseif _node.protocol == "_iface" then
 						if _node.iface then
 							local _outbound = {
@@ -1231,6 +1281,10 @@ function gen_config(var)
 			for index, value in ipairs(rules) do
 				table.insert(route.rules, rules[index])
 			end
+		elseif node.protocol == "_urltest" then
+			if node.urltest_node then
+				COMMON.default_outbound_tag = gen_urltest(node)
+			end
 		elseif node.protocol == "_iface" then
 			if node.iface then
 				local outbound = {
diff --git a/luci-app-passwall/po/zh-cn/passwall.po b/luci-app-passwall/po/zh-cn/passwall.po
index 29998faf8..4c93e477c 100644
--- a/luci-app-passwall/po/zh-cn/passwall.po
+++ b/luci-app-passwall/po/zh-cn/passwall.po
@@ -1579,9 +1579,6 @@ msgstr "最大并发连接数"
 msgid "XUDP Mux concurrency"
 msgstr "XUDP 最大并发连接数"
 
-msgid "Mux idle timeout"
-msgstr "最大闲置时间"
-
 msgid "Padding"
 msgstr "填充"
 
@@ -1600,9 +1597,6 @@ msgstr "推荐值：Sec-WebSocket-Protocol"
 msgid "Health check"
 msgstr "健康检查"
 
-msgid "Idle timeout"
-msgstr "闲置时间"
-
 msgid "Health check timeout"
 msgstr "检查超时时间"
 
@@ -1803,3 +1797,39 @@ msgstr "是否真的要恢复客户端默认配置？"
 
 msgid "Settings have been successfully saved and applied!"
 msgstr "设置已成功保存并应用!"
+
+msgid "_urltest"
+msgstr "URLTest"
+
+msgid "URLTest node list"
+msgstr "URLTest 节点列表"
+
+msgid "List of nodes to test, <a target='_blank' href='https://sing-box.sagernet.org/configuration/outbound/urltest'>document</a>"
+msgstr "要测试的节点列表，<a target='_blank' href='https://sing-box.sagernet.org/zh/configuration/outbound/urltest'>文档原理</a>"
+
+msgid "Test interval"
+msgstr "测试间隔"
+
+msgid "The test interval in seconds."
+msgstr "测试间隔时间（单位：秒）。"
+
+msgid "Test interval must be less or equal than idle timeout."
+msgstr "测试间隔时间必须小于或等于空闲超时时间。"
+
+msgid "Test tolerance"
+msgstr "测试容差"
+
+msgid "The test tolerance in milliseconds."
+msgstr "测试容差时间（单位：毫秒）。"
+
+msgid "Idle timeout"
+msgstr "空闲超时"
+
+msgid "The idle timeout in seconds."
+msgstr "空闲超时时间（单位：秒）。"
+
+msgid "Interrupt existing connections"
+msgstr "中断现有连接"
+
+msgid "Interrupt existing connections when the selected outbound has changed."
+msgstr "当选择的出站发生变化时中断现有连接。"
diff --git a/luci-app-passwall/root/usr/share/passwall/app.sh b/luci-app-passwall/root/usr/share/passwall/app.sh
index c7f3346c9..aea09e627 100755
--- a/luci-app-passwall/root/usr/share/passwall/app.sh
+++ b/luci-app-passwall/root/usr/share/passwall/app.sh
@@ -621,7 +621,7 @@ run_socks() {
 
 	if [ "$type" == "sing-box" ] || [ "$type" == "xray" ]; then
 		local protocol=$(config_n_get $node protocol)
-		if [ "$protocol" == "_balancing" ] || [ "$protocol" == "_shunt" ] || [ "$protocol" == "_iface" ]; then
+		if [ "$protocol" == "_balancing" ] || [ "$protocol" == "_shunt" ] || [ "$protocol" == "_iface" ] || [ "$protocol" == "_urltest" ]; then
 			unset error_msg
 		fi
 	fi
diff --git a/luci-app-passwall/root/usr/share/passwall/subscribe.lua b/luci-app-passwall/root/usr/share/passwall/subscribe.lua
index f89ab7ba7..7533743d0 100755
--- a/luci-app-passwall/root/usr/share/passwall/subscribe.lua
+++ b/luci-app-passwall/root/usr/share/passwall/subscribe.lua
@@ -318,6 +318,36 @@ do
 					end
 				}
 			end
+		elseif node.protocol and node.protocol == '_urltest' then
+			local flag = "Sing-Box URLTest节点[" .. node_id .. "]列表"
+			local currentNodes = {}
+			local newNodes = {}
+			if node.urltest_node then
+				for k, node in pairs(node.urltest_node) do
+					currentNodes[#currentNodes + 1] = {
+						log = false,
+						node = node,
+						currentNode = node and uci:get_all(appname, node) or nil,
+						remarks = node,
+						set = function(o, server)
+							if o and server and server ~= "nil" then
+								table.insert(o.newNodes, server)
+							end
+						end
+					}
+				end
+			end
+			CONFIG[#CONFIG + 1] = {
+				remarks = flag,
+				currentNodes = currentNodes,
+				newNodes = newNodes,
+				set = function(o, newNodes)
+					if o then
+						if not newNodes then newNodes = o.newNodes end
+						uci:set_list(appname, node_id, "urltest_node", newNodes or {})
+					end
+				end
+			}
 		else
 			--前置代理节点
 			local currentNode = uci:get_all(appname, node_id) or nil
@@ -1691,7 +1721,7 @@ local execute = function()
 				f:close()
 				raw = trim(stdout)
 				local old_md5 = value.md5 or ""
-				local new_md5 = luci.sys.exec("[ -f " .. tmp_file .. " ] && md5sum " .. tmp_file .. " | awk '{print $1}' || echo 0")
+				local new_md5 = luci.sys.exec("[ -f " .. tmp_file .. " ] && md5sum " .. tmp_file .. " | awk '{print $1}' || echo 0"):gsub("\n", "")
 				os.remove(tmp_file)
 				if old_md5 == new_md5 then
 					log('订阅:【' .. remark .. '】没有变化，无需更新。')
diff --git a/luci-app-passwall/root/usr/share/passwall/test.sh b/luci-app-passwall/root/usr/share/passwall/test.sh
index 83335b80e..2da810894 100755
--- a/luci-app-passwall/root/usr/share/passwall/test.sh
+++ b/luci-app-passwall/root/usr/share/passwall/test.sh
@@ -95,7 +95,7 @@ url_test_node() {
 		[ "${chn_list}" = "proxy" ] && probeUrl="www.baidu.com"
 		result=$(${_curl} --max-time 5 -o /dev/null -I -skL -x ${curlx} ${curl_arg}${probeUrl})
 		pgrep -af "url_test_${node_id}" | awk '! /test\.sh/{print $1}' | xargs kill -9 >/dev/null 2>&1
-		rm -rf "/tmp/etc/${CONFIG}/url_test_${node_id}.json"
+		rm -rf "/tmp/etc/${CONFIG}/url_test_${node_id}"*.json
 	}
 	echo $result
 }
diff --git a/patch-luci-app-passwall.patch b/patch-luci-app-passwall.patch
index 6243de609..06fb4fa96 100644
--- a/patch-luci-app-passwall.patch
+++ b/patch-luci-app-passwall.patch
@@ -20,10 +20,10 @@ index af6e04a..709fba2 100644
  
  define Package/$(PKG_NAME)/postrm
 diff --git a/luci-app-passwall/luasrc/model/cbi/passwall/client/global.lua b/luci-app-passwall/luasrc/model/cbi/passwall/client/global.lua
-index 5687101..174df8b 100644
+index 908dc46..d33a679 100644
 --- a/luci-app-passwall/luasrc/model/cbi/passwall/client/global.lua
 +++ b/luci-app-passwall/luasrc/model/cbi/passwall/client/global.lua
-@@ -493,6 +493,12 @@ o:value("9.9.9.9", "9.9.9.9 (Quad9)")
+@@ -506,6 +506,12 @@ o:value("9.9.9.9", "9.9.9.9 (Quad9)")
  o:value("149.112.112.112", "149.112.112.112 (Quad9)")
  o:value("208.67.220.220", "208.67.220.220 (OpenDNS)")
  o:value("208.67.222.222", "208.67.222.222 (OpenDNS)")
@@ -36,7 +36,7 @@ index 5687101..174df8b 100644
  o:depends({dns_mode = "dns2socks"})
  o:depends({dns_mode = "tcp"})
  o:depends({dns_mode = "udp"})
-@@ -592,7 +598,7 @@ if api.is_finded("smartdns") then
+@@ -605,7 +611,7 @@ if api.is_finded("smartdns") then
  end
  
  o = s:taboption("DNS", Flag, "dns_redirect", translate("DNS Redirect"), translate("Force special DNS server to need proxy devices."))