The purpose of this study is to identify the moderated mediation effect of supervisee s non-disclosure and co-worker’s intimacy in the relationship with supervisory supervision style perceived by supervisees and small group supervision satisfaction. The subjects of this study were 286 supervisees, and they completed Supervision Style Scale, Supervisee’s Non-disclosure Scale, Co-worker’s Intimacy Scale, Small group Supervision Satisfaction Scale through online and offline survey. The results of this study as follows: First, benevolence and interpersonal sensitivity of supervision style have partial mediating effect on small group supervision satisfaction by supervisee’s non-disclosure, however, there was no mediating effect on supervisee’s non-disclosure in task-orientation. Second, the relationship between benevolence and interpersonal sensitivity of supervision style and the supervisee’s non-disclosure was regulated by the co-worker’s intimacy level. Third, the direct effect on the relationship between benevolence and interpersonal sensitivity and the small group supervision satisfaction level was larger than the mediating effect with supervisee’s non-disclosure and the moderated mediating effect of co-worker s intimacy level.