A remote video monitoring system is designed and realized on basis of 3G wireless network and embedded technology in this paper. This system chooses S3C6410 as the kernel controller, captures video with Opencv, encodes and decodes the video by X264 which is an open source software for video encoding and compression based on H.264 algorithm, and transfers the compressed videos through 3G wireless network. The experimental results show that this system can fulfill wireless video monitoring well with great advantages such as high video compressibility and good fluency of monitoring picture.