In this study it was aimed to determine the dynamics of postoperative coronary artery bypass graft surgery patients' coping strategies and detect the effects of self-efficacy levels in these dynamics. Methods: This analytical cross-sectional study done between 01 October 2015-30 January 2016 in an Education and Research Hospital in Bursa, Turkey. 384 patients included to study and all of them were over 18 years old, had coronary artery bypass graft operation, at least on 4th day after surgery, conscious, no loss of hearing or visual function and volunteer for study. "Patient Information Form", "The Coping Strategy Indicator" and "Barnason Efficacy Expectation Scale Cardiac Surgical Version" are used for data collection. SPSS 21.0 statically analyse programme was used for evaluation of data with one and multivariate analyses. Results: Age means of patients was 60.8±10.23. 51.6% of patients were literate or primary school graduated and many of them (82%) were married. 21.9% patients had serious disease history. Score mean of patients' The Coping Strategy Indicator was 70.69±8.32. Problem Solving Subscale had the highest score and Avoidance Subscale had the lowest score. Barnason Efficacy Expectation Scale Cardiac Surgical Version total score mean was 51.94±6.15 and it was positively mild related to The Coping Strategy Indicator (r=.519, p<.005). Multivariate analyses showed that Coping score increases if after coronary artery bypass graft surgery performed patients self-efficacy score is high, had serious disease history before and decreased age (p<.05, R²=.299). Conclusion: In conclusion, the study showed that coping levels of after coronary artery bypass graft surgery related to self-efficacy level, age and disease history of patients.