This study examined the mediating effects of covert narcissism on interpersonal problems through perfectionism. The Covert Narcissism Scale (CNS), Multidimensional Perfectionism Scale (MPS), Interpersonal Problems Scale (K-IIP) were administered to 554 university and college students. The data collected in this study was analyzed using the SAS 8.2 and AMOS statistical programs. This study confirmed the partial mediating effect of perfectionism on the relationships between university students`` covert narcissism and interpersonal problems. And it was revealed to relationships and route among covert narcissism, perfectionism, and interpersonal problems.