. The aim of this study was to determine the structural equation model of the effect of mental health on the attitude toward hijab with the role of mediator of psychological capital and adaptability and cohesion of family in Zanjan undergraduate students. The research method was cross-sectional and descriptive and its plan was correlational .The statistical population were all of undergraduate students was Zanjan universities To keep fit of the community, The sample size was 335, of which 220 were female and 115 were male. Data were collected using questionnaires of the General Health Questionnaire (28 questions) Goldenberg (1972), Hijab Khidani Attitude Questionnaire (1394), Olson Family Adaptation and cohesion Assessment Scale (1985), Lutangs Psychological Capital Questionnaire (2007). Data were analyzed using SPSS software,. The PLS was used to map structural equations. The results showed that the indirect effect of mental health on the attitude toward hijab and the indirect effect of depression, anxiety, social function and physical symptoms on the attitude toward hijab is significantThe indirect effect of mental health by mediating the psychological capital was not significant to the hijab. The indirect effect of mental health by mediating family correlation was significant on the attitude toward hijab
