The aim of the present study is to investigate the relationship between spiritual intelligence and dysfunctional attitudes and depression and life satisfaction of students in Mahan high school. The research method is descriptive and statistical population is 364 students whom they were selected through census sampling. To collect the data, King Spiritual Intelligence (2008), DAS Wyman and Beck (1978), Beck (1997),) and life satisfaction Diner et al (1997) have been used. To analyze the data, Pearson and Spearman correlation coefficient and multivariate regression were used. Findings showed that there is a relationship between spiritual intelligence and dysfunctional attitudes and depression and life satisfaction in Mahan secondary school students. The best predictor of life satisfaction of students, are respectively, depression, and dysfunctional attitudes and spiritual intelligence.