Based on Android and FFmpeg API, a remote monitoring system was developed. In this system, libx264.so library wad employed to encode and encode the video, and data was sent to the server with the Real Time Messaging Protocol (RTMP). The monitoring side obtains the live stream by accessing the live server, and decodes the libx264.so library by receiving the stream in the thread to monitor the real-time monitoring screen. Test results show that, the picture of the monitor side o can be clearly transmitted to the viewing side, and the location information of the monitoring side can be displayed in the viewing side clearly. The system can be widely used in It has an important significance for hospital care, unmanned aerial vehicle search and rescue, and other scenarios.