diff --git a/source/modules/index.rst b/source/modules/index.rst
index 4c40104..1923b1a 100644
--- a/source/modules/index.rst
+++ b/source/modules/index.rst
@@ -309,6 +309,8 @@ https://github.com/nginxinc/nginx-wiki.
 +---------------------------+--------------------------------------------------------------------------+------------------------------------------------------------------------------------------------+
 | TestCookie module         | Simple robot (DDoS) mitigation module                                    | :github:`kyprizel/testcookie-nginx-module`                                                     |
 +---------------------------+--------------------------------------------------------------------------+------------------------------------------------------------------------------------------------+
+| Transcode module          | NGINX module for media transcoding                                       | :github:`HiSunzhenliang/nginx-transcode-module`                                                |
++---------------------------+--------------------------------------------------------------------------+------------------------------------------------------------------------------------------------+
 | Types Filter              | Changes the *Content-Type* output header on specified conditions         | :github:`flygoast/ngx_http_types_filter`                                                       |
 +---------------------------+--------------------------------------------------------------------------+------------------------------------------------------------------------------------------------+
 | UnTar                     | serve static file content from tar archives                              | :github:`ajax16384/ngx_http_untar_module`                                                      |
@@ -480,6 +482,7 @@ https://github.com/nginxinc/nginx-wiki.
    redis
    redis2
    tarantool
+   transcode
    rrd_graph
    secure_download
    set_misc
diff --git a/source/modules/transcode.rst b/source/modules/transcode.rst
new file mode 100644
index 0000000..f7799c8
--- /dev/null
+++ b/source/modules/transcode.rst
@@ -0,0 +1,82 @@
+NGINX-TRANSCODE-MODULE
+======================
+
+NGINX module for media transcoding
+
+Description
+-----------
+
+This project is used as NGINX third-party module.
+
+Accept HTTP requests, find the files according to the configuration,
+transcode it and return it in the required format.
+
+Install
+-------
+
+1. Clone project
+
+``git clone https://github.com/HiSunzhenliang/nginx-transcode-module.git``
+
+1. Requirements
+
+   -  NGINX
+
+   -  libsox
+
+2. Compile NGINX with NGINX-TRANSCODE-MODULE
+
+``./configure --add-dynamic-module=/.../nginx-transcode-module``
+
+``make && make install``
+
+Usage
+-----
+
+In NGINX config file:
+
+.. code:: 
+
+   location ~ / {
+       nginx-transcode-module;
+       transcode_root "/path/audios";
+       transcode_output_format "mp3";
+   }
+
+.. code:: 
+
+   $ ls /path/audios
+   a.wav b.wav c.wav ...
+
+Send request ``http://127.0.0.1:8000/a.mp3``
+
+Get ``a.mp3`` transcoded from ``a.wav``.
+
+.. _copyright--license:
+
+Copyright & License
+-------------------
+
+.. code:: 
+
+   MIT License
+
+   Copyright (c) 2021 sunzhenliang
+
+   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.