Anti-pinch safety system for metro platform screen door

The utility model provides a subway platform screen door anti-pinch safety system. The subway platform screen door anti-pinch safety system comprises a detection module, an anti-pinch module and a signal joint control module connected with a train operation automatic control system. The detection module comprises a plurality of infrared grating safety detectors which are arranged on the two sidesof the metro shielding door, close to the isolation glass and close to the inner side of the platform. The echelette grating detector starts to work, if the echelette grating detector does not receivethe emission signal, an alarm is given, and the subway shielding door is in an open state; the detection module is connected with the anti-pinch module and transmits a received signal to the signal joint control module. A circuit is additionally arranged in the shielding door to be communicated with a track circuit, if the shielding door is not normally closed, the circuit is not communicated, and a train cannot be starte