diff --git a/lualib/skynet/coroutine.lua b/lualib/skynet/coroutine.lua
index 69cd3130..1d30ab30 100644
--- a/lualib/skynet/coroutine.lua
+++ b/lualib/skynet/coroutine.lua
@@ -80,6 +80,19 @@ end
 
 end -- end of skynetco.resume
 
+function skynetco.status(co)
+	local status = coroutine.status(co)
+	if status == "suspended" then
+		if skynet_coroutines[co] == false then
+			return "blocked"
+		else
+			return "suspended"
+		end
+	else
+		return status
+	end
+end
+
 function skynetco.yield(...)
 	return coroutine_yield("USER", ...)
 end
diff --git a/test/testcoroutine.lua b/test/testcoroutine.lua
index 78a433a6..1bab5d2c 100644
--- a/test/testcoroutine.lua
+++ b/test/testcoroutine.lua
@@ -2,23 +2,37 @@ local skynet = require "skynet"
 -- You should use skynet.coroutine instead of origin coroutine in skynet
 local coroutine = require "skynet.coroutine"
 
+local function status(co)
+	repeat
+		local status = coroutine.status(co)
+		print("STATUS", status)
+		skynet.sleep(100)
+	until status == "suspended"
+
+	repeat
+		local ok, n = assert(coroutine.resume(co))
+		print("status thread", n)
+	until not n
+	skynet.exit()
+end
+
 local function test(n)
-	print ("begin", coroutine.isskynetcoroutine())
+	local co = coroutine.running()
+	print ("begin", coroutine.isskynetcoroutine(co))
+	skynet.fork(status, co)
 	for i=1,n do
 		skynet.sleep(100)
 		coroutine.yield(i)
 	end
 	print "end"
-	return false
 end
 
 skynet.start(function()
-	print("Is the main thead a skynet coroutine ?", coroutine.isskynetcoroutine(coroutine.running()))	-- always false
+	print("Is the main thead a skynet coroutine ?", coroutine.isskynetcoroutine())	-- always false
 	print(coroutine.resume(coroutine.running()))	-- always return false
 	local f = coroutine.wrap(test)
-	repeat
+	for i=1,3 do
 		local n = f(5)
-		print(n)
-	until not n
-	skynet.exit()
+		print("main thread",n)
+	end
 end)