This study intended to investigate the effectiveness of personal wisdom therapy approach in reducing internet addiction in adolescent female students. The present study was a quasi-experimental study with the pre-test, post-test, and a control group. The statistical population included 200 adolescent female students studying in high schools in Hamadan in the academic year 2020-2021 from which 34 female students, selected based on convenience sampling procedure, were randomly divided into experimental and control groups (17 students in each group). The participants in the experimental group received 10 training sessions using a wisdom-therapy approach (Kordnoqabi, 1400). In order to assess the participants’ internet addiction, the internet Addiction Scale developed by Young (2007) was used. In order to analyze the obtained data, a set of ANCOVA was run. The results revealed that personal wisdom-therapy had a statistically significant positive effect on reducing the level of internet addiction among adolescent female students. Since wisdom therapy has been effective in reducing internet addiction, all those involved in education, including high level education officials can design wisdom-based lessons and programs and teachers should be trained to implement these programs to help students in this regard and improve the quality of education.
