Since the implementation of the AntiMonopoly Law，the handling of vertical price monopoly agreement cases has become more and more evident in the binary opposition between judiciary and administrative regulations.The retrial ruling in the Case of Yutai Corporation tried to coordinate and bridge the divergences in understanding，but the interpretation in the ruling still failed to indicate a clear identification route and establish a relatively consistent identification model for the handling of vertical price monopoly agreement cases.In fact，the issue of vertical price monopoly agreement is a systemic issue，and it involves the entire monopoly agreement system.The source of the problem lies in the incomplete information of the concept connotation of the monopoly agreement and the improper method of dividing the concept extension，which leads to the dislocation of the principle application.Moreover，the implement of the monopoly agreement system should start with the perfection of the concept.Determine the defined items and their connotations at first，and then on this basis adopt the“trichotomy”of concept extension to correspond respectively to the per se rule，the reason rule，and the per se legality rule.