This series of rail transfer vehicles can realize insulated rail transportation, high temperature environment, unlimited working time, speed can realize stepless speed regulation, transfer vehicles have a certain climbing ability, and two electric flat cars can realize synchronous operation. Moreover, the rail transfer vehicle can realize circular orbit operation, and can also be equipped with a hydraulic lifting device according to specific needs. The structure is compact, so the cost is low, the noise of the whole vehicle is low, and the slow acceleration start and slow deceleration stop can be realized. It can also be added according to specific needs Special equipment and other non-standard production.