This paper mainly introduced the signaling system, working principle and function of middle-low-speed maglev train. The signaling system design used an integrated idea, which had set automatic block, computer interlocking control and train control and protection functions, but didn’t has the automatic train supervision (ATS) and automatic train operation (ATO) subsystem. The basic function of automatic train supervision (ATS) was instead by interlocking work machine and the train drivers using artificial driving patterns. After 3 years of use shows that the system development is successful.