Acute coronary syndrome describes the presence of sudden ischemia in the myocardium due to loss of blood flow to the heart muscle, causing the cessation of oxygen supply to heart cells. The most common symptom is chest pain. Pain can be overcome by non-pharmacological therapy, the other is benson relaxation. The Benson Relaxation Practice can provide a relaxing and calming effect for patients so that it can change physiological responses associated with stress responses such as oxygen

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... n, carbon dioxide production, heart rate, systolic blood pressure, respiratory frequency, tidal volume capacity, and vital capacity. This research to determine the effect of Benson Relaxation Technique on pain reduction in patients with Acute Coronary Syndrome. Design This research is pre-experiment with the one group pretest posttest. Respondents were obtained by accidental sampling. Data analysis using Wilcoxon. The research is Respondents were age 46-70 years, education of most high school 40%, the sex of most men 70%, the work of most workers and civil 40%, anxiety is mostly moderate anxiety, 90% and all respondents are accompanied by family. The pain of Acute Coronary Syndrome patients before being given benson relaxation was a mean of 6 or moderate pain of 65%. Pain in Acute Coronary Syndorme patients after being given benson relaxation with a mean of 3.60 or included in the category of moderate pain was 60% and mild as 40% There is an influence of benson relaxation techniques on the pain of Acute Coronary Syndrome patients with a p value = 0,000.