Platform lifting type safety door device

The utility model provides a platform lifting type safety door device which comprises a lifting device, a plurality of blocking ropes and a blocking net, the lifting device is connected with a foundation, and the lifting device comprises two lifting pieces arranged side by side; the two ends of any blocking rope are connected with the two lifting pieces correspondingly, and the multiple blocking ropes are configured to be driven by the lifting pieces to move upwards or downwards; the stopping net is connected between the two lifting pieces, the two sides of the stopping net are connected with the two stopping ropes close to the foundation respectively, and before a train enters a station, the two lifting pieces control the seven stopping ropes to be located at the bottom so that a platform can be separated from a train rail, and the safety protection effect on passengers is achieved. The blocking net arranged at the bottom can prevent small articles from falling into the train track; after the train stops, th