Introduction: One of the important issues is the topic of religion in scientific psychology as a phenomenon affecting the knowledge and attitudes, emotions, feelings, behavior and human performance has been of interest to psychologists. There are a few common principle inherent between religion and sports, for example: Build character, discipline, competition, fitness, steady performance, mental fitness, impartial, playing with according to the law and nationalism. In this study, the role of religious belief in a better psychological athletes has been studied in a descriptive procedure.
methodolgy: The population of this study consisted of 200 male athletes with mean age of 35 years ,The athletes were active in 2016 in individual and team sports, which were selected through random sampling survey. The research tools was Inventory measure "spiritual attitude" and Inventory measure "mental skills". Athletes are completed on a voluntary basis, with the explanation that was given to them.The analysis of information according to the Z- test "one group" and Bi-parametric Chi-square test (x 2) for the relationship between variables in the significant level of 95 percent was used.
Results: Analysis of the data showed a significant relationship between religious beliefs three categories of "Mental skills base , Physical mental skills and Cognitive Skills athletes " is shown.
Discussion: The relationship between the two categories of "religious beliefs" and "improve athletic performance" show :Trust in God and invocation of God and belief in divine justice and in general religious beliefs can have an effective role in Increased confidence anxiety and boost the morale of the athletes and psychological skills of athletes in total.