In order to acquiring the whole internal and external environment information of unmanned ground platform quickly and correctly, research the application of vision video processing in unmanned ground platform environment perception system. The thesis introduces the constitute of environment perception system, describes the 5 major vision information processing technologies include assistant demarcating in environment perception information processing, path detection and recognizing, route sign detection, locating and recognizing, obstacle detection, location and movable object detection and tracking, and calculates the relative image processing algorithms of the technology. The research can give reference for environment perception technology of unmanned ground platform system.