Introduction: Adolescence is a very important period that can be difficult for the teenager and can cause challenges for the family. Raising and educating teenagers is very important for families. Acquiring identity is the most important aspect of every person's personality, so the methods of achieving identity are very important, and in the book of Nahj al-Balagheh, various methods for educating parents are suggested. Purpose: This research was conducted with the aim of the effectiveness of parent management training based on Nahj al-Balagheh on adolescent identity styles. Method: The studied population were all adolescent girls of Yazd city. The sample size was 30 people who were selected by cluster random sampling and divided into two experimental groups (15 people) and control (15 people). Data were obtained by Berzonsky's identity style questionnaire (1989), the experimental group was trained in 8 45-minute therapy sessions, while the control group did not receive any training. The data was analyzed using the statistical method of analysis of covariance. Findings: The results showed that parental management training based on Nahj al-Balagheh has an effect on adolescent identity styles. Also, education can have a direct impact on the type of identity of teenagers. Conclusion: The period of adolescence is called the period of crisis, and the parents of these adolescents can learn the necessary training to understand this period and how to deal with their adolescent's problems at the beginning or before the beginning of adolescence. Accordingly, they can use various treatment methods. and use different books. The use and extraction of educational tips using Nahj al-Balaghah can help these parents.