The purpose of this study, which will last for 3 months, is to investigate the effect of the intervention based on the interaction model of health behavior on patients' disease perception, heart failure self-care level, quality of life and service satisfaction. If you have any questions or difficulties, you can withdraw from this study at any time, which will not affect your treatment and care; The purpose of this study is to improve your level of self-care, prevent your readmission to the hospital, and do not harm your physical and mental health, nor negatively affect the patient's relationship with care; Your participation in the study and the personal data in the study are confidential, and any public report on the results of this study will not disclose your personal identity.

Inclusion Criteria:

• Patients diagnosed with CHF according to the New York Heart Association (NYHA) functional classification of II-III.
• Age ≥ 18 years, stable condition, clear consciousness, normal language and written expression abilities, no communication barriers, able to understand and accurately complete questionnaires.
• Informed consent and voluntary participation.

Exclusion Criteria:

• -Patients with complications such as renal or hepatic insufficiency, a history of mental disorders, or currently experiencing mental disorders, or critically ill.