Procrastination refer to do delay doing something until a have time because you do not want to do it, because you are lazy. Many studies have addressed the effect of contextual factors and personality traits on procrastination. The problem statement was that family pattern communication and identity styles can predict academic procrastination  This purpose of the study was to prediction of academic procrastination based on family communication pattern with mediating role of identity styles among students. The present study was done with correlational design specially with path analysis method.Sample included 302 (168 girls & 134 boys) high school students in sector of Mashhad Morghab who were selected via random cluster sampeling method. Tools used in research: Procrastination Assessment Scale-Student (PASS) Solomon & Rothblum(1984), Revised Family Communication Pattern(RFCP) Koerner & Fitzpatrick (2002) and Identity Style Inventory (ISI-6G) Berzonsky (1989). Then data through path analysis were analyzed. The results showed that conversation orientation positively (0.17) and conformity orientation negatively (-0.36) can predict procrastination. In sum,the results showed that family pattern comunication had effect on academic procrastionation through informative identity. In another words informative processing could  explain the mechanism of the effects of family pattern comunication on academic procrastionation.