en عمومى General پژوهشي Research <span style="font-size:14px;"><span style="font-family:Times New Roman;"><span style="line-height:normal"><b>Purpose:</b> The present study aims to investigate the effect of systemic family therapy on reducing triangulation and improving family boundaries in families involved in emotional divorce among patients referred to mental health centers.</span><br> <span style="line-height:normal"><b>Method:</b> The present study is a semi-experimental pre-test-post-test design with a control group. The statistical population includes families involved in emotional divorce among patients referred to mental health centers in Tehran, of which 30 people were selected through convenience sampling and randomly assigned to two groups (15 people in the experimental group and 15 people in the control group). To collect data, Bahrami and Yousefi&#39;s (2017) triangulation questionnaire and the researcher-made &quot;Family Communication Boundaries&quot; questionnaire based on Minuchin&#39;s structural family therapy theory were used. Systemic family therapy was implemented by the researcher for the experimental group in 8 sessions for 4 weeks, two 60-minute sessions each week. During this period, the control group did not receive any intervention. The results of the experiments were calculated using SPSS software. </span><br> <span style="line-height:normal"><b>Findings:</b> The results of the study show that systemic family therapy has an effect on the level of family boundary setting and significantly improves it. Also, systemic family therapy has an effect on the level of triangulation in families involved in emotional divorce in the study and significantly reduces it.</span><br> <span style="line-height:normal"><b>Conclusion:</b> The results indicate the ability of this therapeutic method to create fundamental and lasting changes in the structure and interactions of families with deep emotional problems.<span lang="EN"><span style="font-family:"Cambria",serif"></span></span></span></span></span><br> &nbsp; Systemic family therapy, Family boundary setting, Triangulation, Emotional divorce, Mental health centers 0 0 http://intjmi.com/browse.php?a_code=A-10-1-715&slc_lang=en&sid=1 Mana Khoshabi Khoshabi.mana@gmail.com 10031947532846008573 10031947532846008573 Yes Master of Science in General Psychology, Islamic Azad University, Khorasgan Branch, Isfahan, Iran. Fatemeh Sedighi 10031947532846008574 10031947532846008574 No