The aim of this research was to investigate the effect of anger management skill over aggression control of mothers who have deaf primary school students. Statistic society of research includes all mothers of girl students and deaf boys of primary school in Isfahan city. The number of them was 138. The samples of this study were 40 mothers who were selected randomly by cluster multiphase sampling. Instrument, was Novaco anger questionnaire. The Novaco anger questionnaire was used for pretest for two groups, each group included 20 mothers. Then, anger management skill training was used on experimental group, 7 sessions, each session for 1/5 hour. After the end of training program, post–test on the two groups was implemented. The data was analyzed by covariance through SPSS software. The result of this research showed that training caused the reduction of mothers’ anger. Also, the result showed that anger management training meaning fully is effective to anger total scores (P£0.01), others assessment scores (P£0.002), external pressure scores (P£0.006), and frustration scores (P£0.007).