Objectives: The purpose of this study was to investigate the relationship between mothers’ parenting styles and the identity base and religiosity of the female students at senior high school in the humanities field in Babol, Iran.  Method: The research method is descriptive method of correlation. The statistical population of this study consisted of all female school students at senior high school in the field of humanities, who studied in the Babol public schools in the school year 2019-2020. Through simple sampling method, 120 students and their mothers were selected. The tools were the Identity Base Questionnaire (Adams, 1989), the Aryan Muslim Religiosity Questionnaire (2000) and the Baumrind’s Parenting Styles Questionnaire (Esfandiari, 1996). For the analysis of the data, descriptive frequency index and inferential statistics of Spearman and Pearson correlation coefficient and Kolmogorov-Smirnov test were used. Findings: The findings showed there was a significant relationship between authoritative, negligent and authoritarian parenting styles and the identity base of female students. However, there was no significant relationship between parenting styles and girls’ religiosity. Conclusion: Therefore, one of the ways to strengthen the identity base of students is to help parents to adopt an authoritative approach in educating their daughters.