The invention discloses a comb tooth exchange car carrying plate. The comb tooth exchange car carrying plate comprises a body. The body comprises comb teeth, load bearing beams and traveling beams I. The comb teeth include the square comb teeth I and the square comb teeth II with notches; the comb teeth I are fixed to the outermost end portions of one ends of the load bearing beams; one or more comb teeth II are arranged adjacent to the comb teeth I in parallel; the comb teeth II as many as end comb teeth of the comb teeth I are arranged at the other ends of the load bearing beams in parallel; the load bearing beams are in a pair; the traveling beams I are in a pair, are composed of multiple sections, are fixed between the adjacent comb teeth and are located on the same straight line; and the height of the traveling beams I is consistent with the height of the comb teeth. After the car carrying plate and the matched base are used, under the condition that no up ramp or down ramp exists and an original parking space is occupied, cars can be lifted vertically and exchanged in a comb tooth mode, and the process of storing and taking the cars is completed.