Abstract: The paper designs a kind of obstacles detection and reversing monitoring device for mining dump truck, and introduces the hardware composition and software programming of the device. The sensor in the device adopts advanced laser radar technology to test blind areas in the front and back of the dump truck,the controller taking singlechip as the core collects signals in real-time to display and alarm drivers to pay attention, and the setting of related parameters may be carried out through interactive display. the automation of coal mine, informatization degree is improved, which safeguards the safe operation of the vehicle.