For the deflection problem occurred in the upper die of tailgate inner and outer panel closing die for a certain project during the process of disassembling the die, the mutual motion relationship between upper die and slider of press and the torque on both sides of the upper die were analyzed in detail. It was found that the fundamental reason for the deflection of the upper die was the obvious torque difference on both sides of the upper die base during the ascent process. Then, a rapid judgment method for the force balance of the upper die with asymmetric structure was proposed. Through the actual field data verification of twenty eight sets of dies, when the resultant torque ratio on both sides of the upper die was within (1.0±0.1), the possibility of deflection was low. Furthermore, according to the results of this study, the checklist for the force balance of the upper die movement was established to quickly judge the movement balance of the upper die and guide the die design of new projects. After multiple project verifications, the results show that the method provides a reference for analyzing and solving the balance problems of upper die and achieves good results.