Abstract: In case that the mine monitoring system with function of visual recognition does not require human intervention，the computer vision analysis method is utilized to make automatic analysis on the image sequences of camera recording and to achieve the positioning，identification and monitoring of dynamic scenes.On this basis，the targets are analyzed and judged，which can both monitor the daily transportation and treat the emergencies in time.It can meet the requirement of the social development today.

Key words: Mine monitoring, FPGA, Binaryzation, Otsu method