Laying device capable of moving rail by self

Disclosed is a laying device capable of moving a rail by the self. Drive wheels and drive reducers are fixed to the bottom of a floor beam, sprocket wheels are installed on the drive wheels and the drive reducers and connected by chains, rail lifting plates and rail moving wheels are fixed to the both sides of each drive wheel, a reducer is fixed to the side of each rail lifting plate, chutes in which lifting sliding columns are sleeved are fixedly formed in the two sides of the floor beam, a lifting cylinder is fixed to the upper end of each lifting sliding column, the telescopic end of each lifting cylinder is fixed to a cross beam, stand columns are fixed to the bottom of each cross beam and used for connecting the cross beam with the floor beam, and a plurality of gantries are fixed onto the floor beam. The laying device capable of moving the rail by the self overcomes the defect that existing rail laying platform applied to tunnels is high in labor intensity and low in efficiency, and thus the constructi