Nowadays, the fundamental role of having a purpose for style="font-style:inherit;color:rgb(255,0,120);">life in physical and mental health has been confirmed. According to victor frankl, presence of a purpose in style="font-style:inherit;color:rgb(255,0,120);">life gives style="font-style:inherit;color:rgb(255,0,120);">life a meaning and increases resilience against pains and traumas. The importance of the purpose in style="font-style:inherit;color:rgb(255,0,120);">life construct reveals the need for a reliable and valid tool to measure it. Crumbaugh and Maholick's purpose in style="font-style:inherit;color:rgb(255,0,120);">life questionnaire is the first and one of the most applied tools for the assessment of style="font-style:inherit;color:rgb(255,0,120);">life's purposefulness. The aim of this research is to determine the factor structure of purpose in style="font-style:inherit;color:rgb(255,0,120);">life questionnaire. The questionnaire was administered on 206 students who were selected through random stratified sampling at Ferdowsi University of Mashhad. Exploratory factor analysis showed that there are two factors "comprehension" and "purpose" and this finding were confirmed by confirmatory factor analysis. Altogether results of this research showed factor validity of the purpose in style="font-style:inherit;color:rgb(255,0,120);">life questionnaire with a two factor pattern