This study explores a small but growing stream of research that focuses on nonphysical types of workplace mistreatment - abusive supervision. Abusive supervision is defined as “subordinates’ perceptions of the extent to which their supervisors engage in the sustained display of hostile verbal and nonverbal behaviors, excluding physical contact.” In this study we attempt to study the negative effects of abusive supervision and moderating roles of subordinates’ perceived job security. We focus on subordinates’ knowledge creation and knowledge sharing as outcome variables because of their importance in the changing world of business. Abusive supervision refers not to bullying or physical harrassment of supervisors, but to the behaviors which are not apt to ordinary manners such as formal and considerate behaviors. These type of behaviors usually have clear objective and purpose to achieve, but the way to supervise and deliver influence may easily irritate and annoy the employees and it may lead to negative side effects of supervision. Obviously, changing environment leads to unstable status or perception of employees on their job security. Moreover this unstability of employees’ perception or attitudes may seriously hinge their creative behaviors and vitality. In short, we assume that the more unstable on employees’ job security, the less creative behaviors of them. Besides, employees’ perception of job stability may have some positive effects in a way that it can buffer the negative perception of supervisors’ abusive behaviors. following these research questions, we develop 6 hypotheses and research model. Using a sample of 347 organizational members(subordinates), we hypothesized that supervisors’ abusive supervision would be negatively associated with subordinates’ knowledge creation and knowledge sharing. Moreover, we hypothesized that these relationship would be moderated by subordinates’ perception of job security in a way that the negative effects of abusive supervision will be bigger when the subordinates’ perceive job insecurity. Perceived job security was hypothesized that it will have positive association with knowledge creating and knowledge creation. With hierarchical regression analysis we tested those hypotheses and the results show that all of the hypotheses are supported.