diff --git a/lualib/localgroup.lua b/lualib/localgroup.lua
new file mode 100644
index 00000000..9ae09575
--- /dev/null
+++ b/lualib/localgroup.lua
@@ -0,0 +1,24 @@
+local skynet = require "skynet"
+
+local lg
+
+local group = {}
+
+function group.create()
+	return skynet.call(lg, "lua", "NEW" , skynet.self())
+end
+
+group.address = assert(skynet.query_group)
+group.enter = assert(skynet.enter_group)
+group.leave = assert(skynet.leave_group)
+
+function group.release(id)
+	skynet.send(lg, "lua" , "DELETE", id)
+end
+
+skynet.init(function()
+	lg = skynet.call(".service","lua","group_local")
+	assert(lg)
+end, "localgroup")
+
+return group
diff --git a/service/group_local.lua b/service/group_local.lua
new file mode 100644
index 00000000..cbdc4285
--- /dev/null
+++ b/service/group_local.lua
@@ -0,0 +1,32 @@
+local skynet = require "skynet"
+
+local local_group = {}
+for i=1,10000 do
+	local_group[i] = true
+end
+
+local command = {}
+
+function command.NEW()
+	local k = next(local_group)
+	if k then
+		local_group[k] = nil
+		skynet.ret(skynet.pack(k))
+	else
+		skynet.ret(skynet.pack(nil))
+	end
+end
+
+function command.DELETE(id)
+	assert(handle_group[id] == nil)
+	skynet.clear_group(id)
+	local_group[id] = true
+end
+
+skynet.start(function()
+	skynet.dispatch("lua", function(_, _, cmd, id)
+		local f = command[cmd]
+		assert(f, cmd, id)
+		f(id)
+	end)
+end)
diff --git a/service/group_mgr.lua b/service/group_mgr.lua
index edb5a906..88e90d35 100644
--- a/service/group_mgr.lua
+++ b/service/group_mgr.lua
@@ -1,6 +1,7 @@
 local skynet = require "skynet"
 
-local id = 0
+-- read group_local for id 10000
+local id = 10000
 local harbor_ctrl = {}
 local multicast = {}
 local command = {}
diff --git a/service/testgroup.lua b/service/testgroup.lua
index 37d2dc5d..7b963cca 100644
--- a/service/testgroup.lua
+++ b/service/testgroup.lua
@@ -1,5 +1,6 @@
 local skynet = require "skynet"
 local group = require "mcgroup"
+--local group = require "localgroup"
 
 skynet.start(function()
 	local gid = group.create()
diff --git a/service/testgroup_c.lua b/service/testgroup_c.lua
index 8309c68c..6a468251 100644
--- a/service/testgroup_c.lua
+++ b/service/testgroup_c.lua
@@ -1,5 +1,6 @@
 local skynet = require "skynet"
 local group = require "mcgroup"
+--local group = require "localgroup"
 local id, g = ...
 
 skynet.start(function()