Objective: To analyze the correlation of chronic heart failure( CHF) patients with serum cardiac troponin I( cTnI) between cardiac remodeling and cardiac function. Method: 110 CHF patients were divided into the observation group( 50 cases with elevated cTnI) and control group( 60 cases with normal cTnI). The cardiac structure change indicators and cardiac function indicators were measured,analyzed the correlation about cTnI between cardiac remodeling and cardiac function,and compared the results between the two groups. Result: Compared with the control group,there were statistically significant in the LAd and LVEDd,LVPW,IVS,LVEF,LVM,FS( P 0. 05); the cTnI and LAD,LVEDd were positive correlation( P 0. 05),and with LVPW,IVS,LVM,LVEF,FSCO,SV were negative correlation( P 0. 05);Logistic regression analysis showed that the disease course,LAD and LVEDd were risk factors in leading to elevated serum cTnI. Conclusion: The cTnI of CHF patients significantly correlates with cardiac remodeling and cardiac function,It's important to monitor the cTnI of CHF on the treatment and prevention of heart failure.