As a wide range of network environment, the limited real name network is different from the anonymous network and real name network in the regularity of individual behavior. From the influence factors of individual behavior in the limited real name network, the dimension design is conducted, the formal description of individual behavior is established. Through the empirical analysis, the modeling is feasible to identify the similarity of individual behavior. It has a very practical significance for the study of network group behavior for accurate acquisition of the characteristics of individual behavior in the limited real name network.