Abstract: Since a series of unethical events such as Enron erupted, it has become the common attention how to impede unethical behaviors in the theory and practical areas. However, previous research has paid more attention to impede individual unethical behaviors, less research focused on its social interaction and contagion mechanism. Based on Chinese cultural background, the present research adopted multiple methods and deeply discussed the social interactions of unethical behaviors. The research includes three parts. Firstly, it will study how individual unethical behaviors affect collective unethical behaviors. We will focus on the moderating roles of individual social status and team work interdependence; Secondly, it will study the effect of collective unethical behaviors on individual unethical behaviors and focusing on the mediating roles of conformity psychology and moral identity and moderating roles of collectivism orientation and traditionality. Thirdly, it will study defensive tactics of the above two social interactions. This paper will deeply study social interaction mechanism of unethical behaviors and enrich research results of unethical behaviors in the context of team. These research results will be helpful for impeding social interaction of unethical behaviors in practical areas.

Key words: unethcial behavior, social interaction, social learning