The invention provides a reversing radar system adopting color character track lines and belongs to the field of vehicle signal devices. The system comprises a camera part, a controller LAN (local area network) bus signal processing part and a reversing signal processing part, wherein the camera part comprises a light-sensitive chip and a memorizer; the controller LAN bus signal processing part comprises a main control chip, an independent controller LAN protocol controller and a controller LAN bus interface; the reversing signal processing part comprises an ultrasonic transducer and a reversing host. Each functional circuit of the system is simple in structure, stable in performance and convenient to mount and observe, the distance and the orientation of an obstacle at the tail part of a vehicle can be displayed on any display screen through videos output by the system, the reversing motion track is displayed according to the current vehicle steering wheel position and the vehicle motion trend, meanwhile, the distance and the orientation of the obstacle are read with languages, the safety of the vehicle during reversing is improved, and the system can be widely applied to various vehicles during reversing.