Background and Objective: Understanding the factors affecting the students can assist universities in achieving their educational mission which is for improving  the quality of students learning and their  achievement,too. Therefore, this study designed to investigate the factors affecting academic achievement of Pharmacy school students.

Materials and Methods: This study was a cross-sectional study. The statistical population of research are all pharmacy students in Zanjan University of Medical Sciences who entered to university from1385 until1392(either graduated or are being educated). The number of them were 294 people, who studied with the census method. The data were extracted from list of variables related to the academic and educational records of students. The Data Were analyzed using descriptive statistics and Pearson correlation test and multiple regression.

Results: A total of 294 students, 169 people (57.5%) were female and 125 people (42.5%) were male. The highest frequency of age were related to 23 up to 26 (39.1%). Pearson correlation test showed that there are significant relationship between: gender variable with number of failed units (r=0.289), gender with university average score (r=0.413), gender with the number of probation semester(r=0.137), failed units with diploma average score of diploma (r=0.304) and university average score with average score of diploma (r=0.423). Also the results of multiple regression showed that gender variables, the number of both failed units and passed units and the average score of diploma are the main predictors of academic status.

Conclusion: Factors that are associated with students' academic achievement has been influential in their educational process. Hence to some extent, it s possible to  predict their academic achievement by checking these factors on the arrival to universities.