The purpose of this study is investigation effect of education based on illness perception on self-care behavior and quality of life in heart failure patients. It’s a randomized control trial. Subjects of study are CHF’s patients hospitalized in CCU, Post CCU. 76 eligible patients will be enrolled in two groups. Inclusion criteria: Confirmed heart failure, ability to understand Persian, having negative illness perception, does not be under another study, doesn’t have chronic disease, doesn’t have mental disorder, and doesn’t have cognitive disease. Exclusion criteria: Being in acute phase of disease, wouldn’t like to continue, Discharge before completing intervention. After completing informed consent, demographic information, self-care behavior ,quality of life and illness perception(IPQ) questionnaires before admitting ,in control group without any intervention IPQ will be completed before and after 8 weeks. Intervention group will be done correcting illness perception intervention in 3 sessions, for consecutive days, about 30 minute and illness perception(IPQ) questionnaire will be filled after 8 weeks. Then intervention group will be followed with telephone contacts at afternoons every week for 8 weeks after discharge.Self-care behavior and quality of life questionnaires will be completed after 8 weeks for both groups.