Aiming at the uneasy control of cracks and low acceptance rate of workpiece for truck bumper in deep drawing process, after analyzing the deep drawing technology, the method of additional punch in drawing was adopted. The punch structure was designed and the escape slot and punch regulating method were confirmed. The results show that the adoption of punch in bumper drawing can control the place where the cracks occur and the extended length of the cracks effectively, which also ensure that the cracks only exist in the supplement process parts or the stay resection parts and getting the good yield product. This research is also valuable for the cracking defects remedy in the drawing process of other automobile cover producing.