Objective To explore the application effect of cardiac rehabilitation exercise combined with psychological nursing intervention in elderly patients with chronic heart failure(CHF).Methods A total of 80 elderly CHF patients admitted from March 2019 to March 2022 were randomly divided into control group(routine nursing)and observation group(cardiac rehabilitation exercise+psychological nursing intervention),with 40 cases in each group.The nursing effects of the two groups were compared.Results After nursing,the left ventricular end-diastolic dimension(LVEDD)and left ventricular end-systolic dimension(LVESD)in the observation group were lower than those in the control group,and the left ventricular ejection fraction(LVEF)was higher than that in the control group(P<0.05).After nursing,the levels of serum cardiac troponin Ⅰ(cTnⅠ)and N-terminal pro-B type natriuretic peptide(NT-proBNP)in the observation group were lower than those in the control group(P<0.05).After nursing,the scores of Self-Rating Anxiety Scale(SAS)and Self-Rating Depression Scale(SDS)in the observation group were lower than those in the control group(P<0.05).After nursing,the distance of 6 min walk test(6 MWT)in the observation group was longer than that of the control group,and the Minnesota Living with Heart Failure(MLHF)score was lower than that of the control group(P<0.05).After nursing,the Morisky score of the observation group was significantly higher than that of the control group(P<0.05).Conclusion Cardiac rehabilitation exercise combined with psychological nursing intervention can effectively improve the cardiac function of elderly patients with CHF,improve bad mood and quality of life.