The event of ‘Baidu Bid Ranking’ may become the first case that the antimonopoly law applied in the network antimonopoly. The lawyers who represent victims of the network operating companies initiated the review of antimonopoly to the State Administration for Industry and Commerce. And this article mainly discusses the implementation of the private application in antimonopoly law. From the respect of the private application, firstly this paper assumes that Baidu which has the share of market dominance was confirmed to make mandatory transactions by using the Internet search engine to set a bid ranking and to provide false information to consumers and damage to consumers, then as a result of the special nature of network, the incident involved a wide range of clients and Baidu may face largescale private litigation. But the antimonopoly law of China has issued soon before, although the terms of civil liability is provided, the specific implementation details have yet to be promulgated. So we need to address many pressing practical problems, such that how should the court deal with such a largescale litigation or is the existing representative actions provision enough, whether to consider the introduction of class actions of the United States and how to establish the eligibility of the parties, and so on. By the Baidu case and from a comparative perspective, this paper attempts to compare the litigation proceeding system between the representative action and class action, incorporate the advantages of the representative action to class action and make a localization in the field of antimonopoly law of China to build the field for a new type of antimonopoly class action system.