Objective To analyze the current status and its influencing factors of breathlessness catastrophizing in patients with chro-nic heart failure, so as to provide references for developing targeted nursing intervention programs.Methods Potential influencing variables were selected based on symptom experience model, then 246 inpatients with chronic heart failure were conveniently selected from July 2024 to April 2025, and they were investigated by utilizing a general information questionnaire, the Breathlessness Catastrophizing Scale, the Dyspnea Subquestionnaire of Pulmonary Functional Status and Dyspnea Questionnaire, the Self-Management Scale of Heart Failure Patients and the Family APGAR Index.Results The breathlessness catastrophizing score in the participants was （32.77±7.37）.The results of multiple linear regression analysis showed that, educational background, degree of breathlessness, NYHA classification of heart function, disease course, self-management and family caring degree were the influencing factors of breathlessness catastrophizing in patients with chronic heart failure （all P＜0.05）.Conclusion Breathlessness catastrophizing in patients with chronic heart failure is at a medium level.Medical staff should adopt stratified, graded and phased intervention strategies according to patients′ characteristics, and develop personalized intervention measures focusing on improving the level of self-management and family caring degree, so as to effectively reduce patients′ level of breathlessness catastrophizing.