Objective:To investigate the current status of self-care contribution of primary caregivers of patients with chronic heart failure,and analyze its influencing factors.Methods:A total of 188 inpatients with chronic heart failure and their primary caregivers were selected from the department of cardiology of a top three hospital in Bengbu City.The General data questionnaire and self-care contribution scale of heart failure patients'caregivers were used for questionnaire investigation.Results:The total self-care contribution score of rimary caregivers of patients with chronic heart failure was(23.21±4.94),the contribution score for medical problem-related self-carewas(15.10±2.98),and the contribution score for lifestyle-related self-care was(8.12±2.90).The results of multiple linear regression analysis showed that the caregiver's family residence,physical condition,average daily caregiving time,presence of co-sharers and number of patients requiring care were the influencing factors of caregiver's self-care contribution(P<0.05 to P<0.05).Conclusions:The level of self-care contribution of primary caregivers of patients with chronic heart failure is low.According to the influencing factors,healthcare professionals should develop targeted interventions to improve the level of self-care contribution of caregivers,so as to improve the quality of life of patients.