Introduction: The purpose of this study was to investigate the factor structure, validity and reliability of the multidimensional student’s life satisfaction.Method: This study had a correlation design. The sample consisted of 677 high school students which were selected by a multi stage cluster sampling in Shiraz city. The participants completed the multidimensional student’s life satisfaction scale. Data were analyzed by using factor analyses and correlation.Results: By using the alpha Cranach's the internal consistency of this scale were, 0/86, 0/81. 0/83,0/79 and 0/76 for self, family, school, friend and environment living life satisfaction and the mean of three week test- retest coefficient was 0.82. The results of the factor analysis revealed that MSLS is a multidimensional instrument with five distinct and related factors including self, family, school, friends and environment living satisfaction. In addition, goodness of fit indices of confirmatory factor analysis confirmed the 5 extracted factors.Conclusion: The multidimensional student’s life satisfaction scale (MSLS) has an appropriate reliability and validity and is a suitable scale for research and clinical