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The purpose of this study is to investigate the social phenomenon of bullying among faculty members. In this way, various aspects of these issues were tried and presented with respect to the context of the institution of university in Iran. The present study was conducted within the framework of the qualitative approach and using the fundamental theory research method (with a Strauss and Corbin system look). For data collection, informative media, in-depth interviews and informal interviews were used. Selection of information media of the research was done purposefully and using sampling strategies with maximum variation and theoretical sampling. The research media included 32 faculty members  of comprehensive universities in Tehran. Data analysis was performed in three stages of open, axial, and selective coding.. According to the findings, the phenomenon of bullying in faculty members' relations in Iran's higher education has verbal, physical, or psychological and social dimensions(Phenomena). This phenomenon has arisen due to organizational and individual circumstances(Causal Conditions) and resulted in reactions such as avoidance, conflict, acceptance(Strategy). These reactions have been affected by the responses of the authorities, the persistence and common beliefs (intervening conditions), structure and academic culture (context), resulting in occupational, personal, social and economic vulnerability(Consequences)