diff --git a/lualib/skynet.lua b/lualib/skynet.lua
index 7719d2ae..7e5115cb 100644
--- a/lualib/skynet.lua
+++ b/lualib/skynet.lua
@@ -583,6 +583,17 @@ function skynet.mqlen()
 	return tonumber(c.command "MQLEN")
 end
 
+function skynet.task(f)
+	local t = 0
+	for _,co in pairs(session_id_coroutine) do
+		if f then
+			f(debug.traceback(co))
+		end
+		t = t + 1
+	end
+	return t
+end
+
 -- Inject internal debug framework
 local debug = require "skynet.debug"
 debug(skynet)
diff --git a/lualib/skynet/debug.lua b/lualib/skynet/debug.lua
index 807ee2ae..bb5877fe 100644
--- a/lualib/skynet/debug.lua
+++ b/lualib/skynet/debug.lua
@@ -21,9 +21,16 @@ end
 function dbgcmd.STAT()
 	local stat = {}
 	stat.mqlen = skynet.mqlen()
+	stat.task = skynet.task()
 	skynet.ret(skynet.pack(stat))
 end
 
+function dbgcmd.TASK()
+	local task = {}
+	skynet.task(function(info) table.insert(task, info) end)
+	skynet.ret(skynet.pack(task))
+end
+
 function dbgcmd.INFO()
 	if internal_info_func then
 		skynet.ret(skynet.pack(internal_info_func()))
diff --git a/service/debug_console.lua b/service/debug_console.lua
index b15c3889..a587f69d 100644
--- a/service/debug_console.lua
+++ b/service/debug_console.lua
@@ -113,6 +113,7 @@ function COMMAND.help()
 		snax = "lanuch a new snax service",
 		clearcache = "clear lua code cache",
 		service = "List unique service",
+		task = "task address : show service task detail",
 	}
 end
 
diff --git a/service/launcher.lua b/service/launcher.lua
index b80eadc9..5c1c1a8b 100644
--- a/service/launcher.lua
+++ b/service/launcher.lua
@@ -38,6 +38,16 @@ function command.INFO(_, _, handle)
 	end
 end
 
+function command.TASK(_, _, handle)
+	handle = handle_to_address(handle)
+	if services[handle] == nil then
+		return
+	else
+		local result = skynet.call(handle,"debug","TASK")
+		return result
+	end
+end
+
 function command.KILL(_, _, handle)
 	handle = handle_to_address(handle)
 	skynet.kill(handle)