The present invention relates to a pet leash having a reinforcement bar, capable of improving the durability of a band surrounding the neck of a pet and at the same time, can prevent an accident by preventing a metal component from being separated from the original position even by pulling force, and can solve a chip loss problem by mounting the chip inputted with the pet information inside the band for preventing exposure of the chip. In addition, the pet leash having a reinforcement bar comprises: a band mounted on the neck of a pet in order to tow the pet and including a latch exposing unit which penetrates in a long hole at the front part thereof, a plurality of first rivet holes which are provided at both sides thereof corresponding to each other with respect to the latch exposing unit, and length regulating holes which penetrate at the back end part thereof at regular intervals； a reinforcement bar formed in a plate shape, including a latch installing hole at a position corresponding to the latch exposing unit, an upper reinforcing plate placed in the upper part thereof and a lower reinforcing plate placed in the lower part thereof in a state in which a buckle groove is formed by bending the central part of the latch installing hole in a c shape, second rivet holes which penetrate the upper and lower reinforcing plates at positions corresponding to the first rivet holes, and, on the upper and lower reinforcing plates, first loop grooves which are formed in a circular shape by being concavely formed in an outward direction and second loop grooves which are placed at an interval from the first loop grooves, respectively； a buckle installed in the inner side of the latch installing hole； an lead wire loop installed in the first loop grooves； a band loop installed in the second loop grooves； and a rivet fixing the band and the reinforcement bar.본 발명은 보강대가 구비된 애완동물용 목줄에 관한 것으로서, 애완동물 목을 감싸는 밴드의 내구성을 향상시키는 동시에 금속재질의 구성품이 당기는 힘에도 정위치에서 이탈되지 않도록 하여 안전사고를 미연에 방지하고, 나아가
