The study is to predict the sports commitment of physical education students based on environmental factors. This is a descriptive study as a research strategy, in terms of execution path of Correlation type, in terms of time is a section, as data collection is a field, in terms of purpose is applied and in terms of outcomes it is prospective one. The statistical population of the study was all physical education students of physical education faculty in Islamic Azad University of Central and Northern Tehran and Research Science Branches (680 people). According to the Morgan table, 382 people were selected as a statistical sample. Accordingly, due to lack of cooperation (12 students), 370 students were randomly selected as sample. The Athletic Commitment Questionnaire of Scanlan et al. (1993) and the Environmental Factors Questionnaire of Reimers et al. (2006) were used to collect data. Content validity of the questionnaire approved by 10 professors of physical education and the reliability of the questionnaire was 0. 82 and 0. 81 respectively for the Cronbach's alpha coefficient for the sports commitment questionnaire and the environmental factors. To analyze the data, descriptive statistics (frequency and percentage of frequency, mean and standard deviation), and inferential statistics of Kolmogorov-Smirnov test, Spearman correlation coefficient and regression were used by SPSS software. According to the Spearman test, there is a significant and direct relationship between environmental factors and sport commitment of physical education students. The coefficient of determination (R2) shows that 25% of the total variance sport commitment changes related to environmental factors. Also, the results of regression test showed that the environmental factor has the ability to predict student sports commitment.