Abstract: This paper first introduces the popular stereo matching algorithms, then considers the characteristics of fast moving of a mobile robot, and chooses the WTA stereo matching algorithms based on region from many stereo matching algorithms.The author adopts some improving measures to ensure the correctness of matching and decrease the percentage of bad matching as well.The experiments prove that the stereo matching algorithms presented in this paper have good real-time performance and better precision, and can meet the requirements of binocular stereo vision applications for mobile robots.