The purpose of This Article is Study of the relationship of religious beliefs and Islamic lifestyle with job performance of elementary school teachers in academic year of 1396-95. The research method was descriptive-correlational. The statistical population included all elementary school teachers (100 males, 152 females) in Bandare Torkman. Stratified random sampling was used to select 61 males and 92 females. Three questionnaires of Glock and Stark Religiosity Questionnaire (1965), Kaviyani Islamic Lifestyle Questionnaire (1388), and Paterson Job Performance Questionnaire (1970) were used and multiple regression and Pearson correlation coefficients were used to analyze the data. The results indicated that there is a relationship between religious beliefs and Islamic lifestyle with the teachers' job performance. In general, religious beliefs and Islamic lifestyle explain 79% (coefficient of determination of 79 o%) of the variance, with multicollinearity results of 3/65 and 3. 04, for teachers' job performance. In addition, there is a positive and significant relationship between religious beliefs and its dimensions (belief, emotional, consequential, religious and intellectual) with job performance, between Islamic lifestyle with job performance, and finally between religious beliefs and its dimensions with Islamic lifestyle and dimensions (timeliness, security, defense, thinking and science, mental health, family, financial, ethical, beliefs, and social) of the studied teachers. Thus, the individuals with a high level of religious beliefs and Islamic lifestyles have an effective job performance.