The invention discloses a punching system of an automobile right suspension arm. The punching system comprises a blanking sequential conveying mold, a mold, a side cutting mold, a first shaping mold, a side turning shaping mold, a hole turning trimming mold, a second shaping mold, a dinting mold and a side punching mold which are arranged according to the working procedure. The automobile right suspension arm is subject to blanking, forming, side cutting, first shaping, side turning shaping, side turning trimming, second shaping, dinting and side punching. The punching system of the automobile right suspension arm has the beneficial effects of being stable in machining, capable of ensuring product quality and the like.