摘要:The present study was designed and conducted with the aim of the effect of belief in the hereafter and worldliness on mental health in athletes. The method of the present study is a field study. The present study is one of the applied researches. The statistical population of the present study included all professional athletes, the exact number of whom was not available. According to the available selection according to the Cochran sample size formula in the uncertainty of the community, 384 people were identified as the research sample. Finally, after distributing and collecting research questionnaires, 354 questionnaires were analyzed. The instruments of the present study included three questionnaires of 28 general health questions (4 components of physical symptoms, anxiety and insomnia, social dysfunction and depression), a researcher-made questionnaire with 7 questions of belief in the hereafter and also a researcher-made questionnaire with 10 questions of worldliness. In the present study, the structural equation method was used to analyze the research data. The whole process of data analysis was performed in SPSS and PLS software. According to the results of the research model, it was found that according to the level of t-relationships, it was found that belief in secularism has an effect on mental health of -0.267. The results also showed that belief in the hereafter has an effect on mental health of 0.603.