Mortality and morbidity due to coronary heart disease (CHD) are increasing. Patients with coronary heart disease are undergone Percutaneous Coronary Intervention (PCI) have different perceptions regarding these actions so the belief of inability to care for self is different for everyone, therefore, it is important to build the capability of patients which is called self-efficacy. The purpose of this article is to explain the definition of the concept of selfefficacy in CHD patients undergoing PCI. The method used in this concept analysis is using Walker and Avant's concept approach. The three definitions of self-efficacy attributes are strong self-confidence in self-care, perceived ability to engage in self-care activities, and effort and ability to control risk factors. The antecedents of the self-efficacy concept of CHD patients undergoing treatment consist of age, socioeconomic, the number of coronary blockages, duration since the first PCI, health education, selfawareness, social support, depression, adherence, and physical activity. The consequence of self-efficacy increases in health status, behavior toward health, and quality of life. The conclusion of this analysis concept increases nurse knowledge about the self-efficacy of patients with CHD that undergo PCI so that it is expected can develop evidence-based nursing through nursing intervention in improving self-efficacy and also conduct further research to dig more into self-efficacy.