The present study aimed to investigate for social skills associated with social support providing in Japanese university students. 647 participants completed questionnaire survey measured social skills(initiation of new relationships, decoding, selfassertiveness, emotional regulation, maintenance of intimate relationships, encoding), social support provision for family and close friends, and social support reception from family and close friends. Structured equation modeling revealed that high level of maintenance of intimate relationships and encoding skills, and low level of self-assertiveness were associated with high level of support perception from both family and close friends through support provision for them. These result suggested that increasing maintenance of intimate relationships and encoding skills with keeping low level of self-assertiveness help Japanese university students to increase their social support providing.