A guide rail lifting type door for a pet cage includes a rectangular shift lever (1), a lifting handle (2) and a pair of guide rails (3) the rectangular shift lever (1) and the lifting handle (2) are rotatably fixed on a crossbar of the cage door respectively the tail end of the lifting handle (2) is equipped with a hook structure (2a) the hook structure (2a) hooks the crossbar of the cage door the rectangular shift lever (1) blocks the front end of the lifting handle (2) and carries out locking on the lifting handle (2) and the lifting handle (2) rotates to drive the rectangular shift lever (1) to rotate, and the hook structure (2a) is separated from the crossbar of the cage door to carry out unlocking.