In this research, it is aimed to review the relationship between altruism and perfectionism mentality among university students. The research has been conducted among 250 girls, 250 boys, in total 500 university students who have studied in different public and private universities in İstanbul. The data related to the attendant’s altruism levels are obtained by using Altruism Scale, their perfectionism levels were determined by using the Perfectionistic Self-Presentation Scale and data related to personal characteristics was obtained by using Personal Information Form that was issued by the researcher. In regression analysis, points, that are taken from the sub-dimension of the altruism levels among the university students are obtained as dependent variable (attendance to voluntary activities, financial supports, help in the traumatic situations, help for old patient people, help based on physical force, help during the education period, help arisen from feeling closeness), points that are taken from the sub-dimension(perfectionist self-presentation, nondisplay of imperfection and nondisclosure of imperfection) of the perfectionistic self-presentation are obtained as a predictor variable. One way variance analysis and T-test analyses were made to review altruism mentality among the university students whether it becomes different or not according to gender, age, the average income of the family, people of which living together with, family-style that she/he has grown up. According to the research results, it has been determined that there are significant relationships between an altruism act and perfectionism among university students. Also, it has been determined that a woman has been acting more altruist than a man, juniority university students have been acting less altruist than the older ones.