diff --git a/plugins/emqttd_plugin_demo/src/emqttd_demo_acl.erl b/plugins/emqttd_plugin_demo/src/emqttd_demo_acl.erl
new file mode 100644
index 000000000..e92fd9733
--- /dev/null
+++ b/plugins/emqttd_plugin_demo/src/emqttd_demo_acl.erl
@@ -0,0 +1,51 @@
+%%%-----------------------------------------------------------------------------
+%%% @Copyright (C) 2012-2015, Feng Lee <feng@emqtt.io>
+%%%
+%%% Permission is hereby granted, free of charge, to any person obtaining a copy
+%%% of this software and associated documentation files (the "Software"), to deal
+%%% in the Software without restriction, including without limitation the rights
+%%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+%%% copies of the Software, and to permit persons to whom the Software is
+%%% furnished to do so, subject to the following conditions:
+%%%
+%%% The above copyright notice and this permission notice shall be included in all
+%%% copies or substantial portions of the Software.
+%%%
+%%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+%%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+%%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+%%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+%%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+%%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+%%% SOFTWARE.
+%%%-----------------------------------------------------------------------------
+%%% @doc
+%%% emqttd demo acl module.
+%%%
+%%% @end
+%%%-----------------------------------------------------------------------------
+-module(emqttd_demo_acl).
+
+-author('feng@emqtt.io').
+
+-include_lib("emqttd/include/emqttd.hrl").
+
+-behaviour(emqttd_acl).
+
+-export([check_acl/3, reload_acl/0, description/0]).
+
+-spec check_acl(User, PubSub, Topic) -> {ok, allow | deny} | ignore | {error, any()} when
+    User     :: mqtt_user(),
+    PubSub   :: publish | subscribe,
+    Topic    :: binary().
+check_acl(_User, _PubSub, _Topic) ->
+    ignore.
+
+reload_acl() ->
+    ok.
+
+description() ->
+    "Demo ACL Module".
+
+
+
diff --git a/plugins/emqttd_plugin_demo/src/emqttd_demo_auth.erl b/plugins/emqttd_plugin_demo/src/emqttd_demo_auth.erl
new file mode 100644
index 000000000..956d2dcf1
--- /dev/null
+++ b/plugins/emqttd_plugin_demo/src/emqttd_demo_auth.erl
@@ -0,0 +1,41 @@
+%%%-----------------------------------------------------------------------------
+%%% @Copyright (C) 2012-2015, Feng Lee <feng@emqtt.io>
+%%%
+%%% Permission is hereby granted, free of charge, to any person obtaining a copy
+%%% of this software and associated documentation files (the "Software"), to deal
+%%% in the Software without restriction, including without limitation the rights
+%%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+%%% copies of the Software, and to permit persons to whom the Software is
+%%% furnished to do so, subject to the following conditions:
+%%%
+%%% The above copyright notice and this permission notice shall be included in all
+%%% copies or substantial portions of the Software.
+%%%
+%%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+%%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+%%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+%%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+%%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+%%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+%%% SOFTWARE.
+%%%-----------------------------------------------------------------------------
+%%% @doc
+%%% emqttd demo auth module.
+%%%
+%%% @end
+%%%-----------------------------------------------------------------------------
+-module(emqttd_demo_auth).
+
+-author('feng@emqtt.io').
+
+-include_lib("emqttd/include/emqttd.hrl").
+
+-behaviour(emqttd_auth).
+
+%% callbacks...
+-export([check_login/2]).
+
+-spec check_login(mqtt_user(), undefined | binary()) -> true | false | ignore.
+check_login(User, Password) ->
+    true.
+
diff --git a/plugins/emqttd_plugin_demo/src/emqttd_plugin_demo.app.src b/plugins/emqttd_plugin_demo/src/emqttd_plugin_demo.app.src
new file mode 100644
index 000000000..1fd8ce62d
--- /dev/null
+++ b/plugins/emqttd_plugin_demo/src/emqttd_plugin_demo.app.src
@@ -0,0 +1,12 @@
+{application, emqttd_plugin_demo,
+ [
+  {description, ""},
+  {vsn, "1"},
+  {registered, []},
+  {applications, [
+                  kernel,
+                  stdlib
+                 ]},
+  {mod, { emqttd_plugin_demo_app, []}},
+  {env, []}
+ ]}.
diff --git a/plugins/emqttd_plugin_demo/src/emqttd_plugin_demo_app.erl b/plugins/emqttd_plugin_demo/src/emqttd_plugin_demo_app.erl
new file mode 100644
index 000000000..9042a449a
--- /dev/null
+++ b/plugins/emqttd_plugin_demo/src/emqttd_plugin_demo_app.erl
@@ -0,0 +1,16 @@
+-module(emqttd_plugin_demo_app).
+
+-behaviour(application).
+
+%% Application callbacks
+-export([start/2, stop/1]).
+
+%% ===================================================================
+%% Application callbacks
+%% ===================================================================
+
+start(_StartType, _StartArgs) ->
+    emqttd_plugin_demo_sup:start_link().
+
+stop(_State) ->
+    ok.
diff --git a/plugins/emqttd_plugin_demo/src/emqttd_plugin_demo_sup.erl b/plugins/emqttd_plugin_demo/src/emqttd_plugin_demo_sup.erl
new file mode 100644
index 000000000..65dad7a60
--- /dev/null
+++ b/plugins/emqttd_plugin_demo/src/emqttd_plugin_demo_sup.erl
@@ -0,0 +1,27 @@
+-module(emqttd_plugin_demo_sup).
+
+-behaviour(supervisor).
+
+%% API
+-export([start_link/0]).
+
+%% Supervisor callbacks
+-export([init/1]).
+
+%% Helper macro for declaring children of supervisor
+-define(CHILD(I, Type), {I, {I, start_link, []}, permanent, 5000, Type, [I]}).
+
+%% ===================================================================
+%% API functions
+%% ===================================================================
+
+start_link() ->
+    supervisor:start_link({local, ?MODULE}, ?MODULE, []).
+
+%% ===================================================================
+%% Supervisor callbacks
+%% ===================================================================
+
+init([]) ->
+    {ok, { {one_for_one, 5, 10}, []} }.
+