['Cancer patients experience a high level of stress caused by the disease and treatment processes. Dealing with cancer using more beneficial coping styles can effectively improve the quality of life (QOL) and reduce the side effects of cancer, and it is treatment. In this study, we aimed to investigate the relationship between coping styles and QOL in cancer patients.', "The study was performed on 150 cancer patients (71 females and 79 males) admitted to the hospitals affiliated with Kermanshah University of Medical Sciences. Endler and Parker Coping Inventory for Stressful Situations, and World Health Organization's Quality of Life Questionnaire were used to evaluate their coping style and QOL, respectively.", 'The Present study showed in cancer patients being male, single, having higher salary and education, and lower age are related to higher QOL. Furthermore, in general, QOL of cancer patients was positively correlated with avoidant coping style (P < 0.05, r : 0.170) and negatively associated with emotion-focused coping styles (P < 0.01, r : -0.378).'] Does association of Coping style with Quality of Life in Cancer Patients?