This study aims to examine the role of empowerment, Organizational Citizenship Behavior (OCB), and Knowledge Sharing Behavior as a mediator on the Influence of Leadership on Rescuer Performance of BASARNAS Southeast Sulawesi Province. This study took a sample of 114 respondents in the entire population of BASARNAS Southeast Sulawesi Province. Data were collected directly using a questionnaire, then the data that had been collected were analyzed using WarP PLS 6.0. The results showed that empowerment plays a role as complete mediation or complete mediation, while OCB and knowledge sharing behavior act as quasi mediation or non-complete mediation. Leadership has a direct effect on performance. The coefficient value of the leadership path to performance through OCB is 0.1079 with a p- value equal to 0.08. The coefficient value of the leadership path to performance through empowerment is 0.208 with a p-value equal to 0.1. And the coefficient value of the leadership path to performance through knowledge sharing behavior is 0.164 with a p-value equal to 0.41.