The invention belongs to the technical field of network space security, and discloses an information hiding access method and system based on behavior confusion, and a server. The method comprises thesteps of data collection, data storage, data analysis, access preparation, user access request check, virtual identity selection, access link selection, target page access, access result return, selection of a large number of virtual user models, acquisition of a large number of simulation access links and simulation of real social behavior processes of a large number of virtual users. Accordingto the invention, the modularization of each functional component is realized, and the functional responsibility of each module is clear; the binding relationship between the identity and the behavioris avoided, and the leakage risk of the user identity information and the behavior intention is reduced. According to the invention, the virtual user identity and the virtual access link are established by analyzing the real user identity information and the behavior data of the network, and the identity information and the access intention of the real user are confused by maintaining the accessbehavior activities of a large number of virtual users, so that the purpose of information hidden access is achieved.