Background and objective: Acute coronary syndrome is defined as one of the cause of death in our country, with an annual mortality of 110,000. Physical activity, dietary changes and medication regimen of self care behaviors are recommended for the treatment of coronary artery disease . These patients awareness and understanding of disease risk factors along with promotion of healthy behaviors and self-care can reduce coronary artery disease severity. To cope with disease problems, hearth patients need self-care behaviors. Identification of these behaviors in parallel with encouraging of patients to participate in these behaviors and to control the disease complications.   Material and methods: This descriptive study was undertaken non-randomized on 352 patients admitted to coronary heart disease ward in the center of AliebnAbitalib Rafsanjan In 1388 . Information were obtained by questionnaires and personal data questionnaire (consists of three areas of self care regimen, diet and physical activity) were collected via interviews. Data were analyzed, using descriptive statistical tests and spss version 15.   Results: 53.4 %( 188 cases ) Of samples 53.4%(188cases) were male and 46.6% (164 cases) women. The of average age of patients was 60.86 ± 11.In 45. 81%t patients had an average of consciousness. So that the study samples within the Medicinal awareness 36.9 % , 59.7 % and 3.4 %, respectively, of low, medium and fine, knowledge regarding diet, while 16.2 %, 71.3 5% and 12.5% and poor, average and good. Regarding physical activities 11.6 %, 64.8 %, 32.6%, respectively, had weak, medium and well enjoyed results.   Conclusion : He knowledge of self care in cardiac patients is relatively low. Hence one of the main tasks of nursing is training of the patients regarding self care programs patients suffering from heart disease require continuous training. The training of nursing care to the heart patients is amounts the main duties of during staff.