Introduction: The present study was conducted with the aim of examining the effectiveness of Emotionally Focused Therapy (EFT) on depression of heart disease patients in Tehran city in 2019. Method: The research method was semi-experimental with pretest-posttest and control group. The statistical population of the study consisted of all heart disease patients in Tehran city, among whom 30 individuals were selected through available sampling method and randomly assigned to experimental and control groups (15 in each group). The experimental group received Emotionally Focused Therapy training in nine 60-minute sessions, and the control group remained in the waiting list. The research instrument was depression questionnaire (Beck, Steer & Braun,1996) which was conducted in two stages of pretest and posttest. The analysis was performed through SPSS v24 in two descriptive and inferential statistical sections. Results: The results indicated that intervention used in this study could significantly decrease depression in heart disease patients (p˂0.05). Conclusion: Based on the results of this research, Emotionally Focused Therapy can be an effective intervention in reducing depression in heart disease patients.
