The primary aim of the present article is to analyze the efficiency of religious orientation in predicting flow experience of physical education students based on demographic variables. Also, the role of demographic variables was taken into account as the secondary aim of the study. 200 physical education students of the University of Isfahan were chosen randomly. They answered Religious Orientation Scale (Alport & Ross, 1987) as well as Flow Experience (Csikszentmihalyi, 1982). Multiple Regression Analysis was used to analyze the data and the structural analysis software was used to check the efficiency of the model. The results indicated that the intrinsic religious orientation model was positive predictor of the flow experience while the extrinsic religious orientation model was negative predictor of the flow experience. Also, the role of demographic variables indicated that the relationship between age and education with flow experience is positive and significant. In addition, it was revealed that the religious orientation model with the presence of demographic variables has the necessary efficiency in order to predict flow experience. All in all, the results of the present study confirmed that the intrinsic religious orientation is efficient in predicting flow experience.