diff --git a/readme.txt b/readme.txt
index 58bbd98c..1ee2dc1b 100644
--- a/readme.txt
+++ b/readme.txt
@@ -29,6 +29,9 @@ NOTE:
    RK3228/RK3229/RK3228H/RK3328
    RV1108/RV1107
 3. Mpp support all format hardware can support except VC1.
+4. you can get demo about mpp applied to linux and android.
+     Liunx : https://github.com/WainDing/mpp_linux_cpp
+     Android : https://github.com/c-xh/MediaCodecDecodeMulti_h264
 
 More document can be found at http://opensource.rock-chips.com/wiki_Mpp