the present study is conducted with the aim of comparing the effectiveness of mindfulness-based parenthood intervention for mothers with self-compassion intervention for girls on mental welfare of teenage girls that have parent-child conflict. The research method was quasi-experimental with a pretest-posttest design. It also had control group and follow-up. The statistical population of the study consisted of teenage girls in their 14 and 15 years who were studying in public schools in district 14 of Tehran, in the school year 2021-22 (1399-1400) and their mothers. The sample of the study was 45 students who were selected by purposive sampling method and randomly divided into three groups. The first group involved 10 students' mothers who received mindfulness-based parenthood intervention, and the second group consisted of 12 students who received self-compassion intervention. Besides, the control group involved 12 students who didn’t receive any intervention. The interventions were provided in 8 sessions, each lasting 90 minutes. Students answered Keyes and Magyarmo Mental Well-Being Scale before, after, and 2 month after the intervention. The outcomes of the analysis of mix variance demonstrated that mindfulness-based parenthood intervention for mothers and self-compassion intervention for girls were significantly effective on mental well-being, compared to the control group (p≤ 0.001). self-compassion intervention was more effective and it maintained its stability during the follow-up stage. Therefore, this intervention can be used in school counseling environments so as to increase welfare, improve relationships, for adolescents who have conflict with their parents