Chronic heart failure state monitoring system using the chest tissue resistance value according to the features of the present invention for achieving the above object is a chronic heart failure state monitoring system, a chest tissue resistance measurement device for measuring a user's chest tissue resistance value； And a user terminal equipped with a heart failure status monitoring application that monitors the chronic heart failure status of the user by using the user's chest tissue resistance value measured by the chest tissue resistance measurement apparatus, wherein the chest tissue resistance measurement apparatus comprises: A resistance measurement unit that directly measures the tissue resistance value； A signal processing unit that filters the user's chest tissue resistance value measured from the resistance measurement unit, converts it into a digital signal, and outputs it； And a transmission unit that transmits the chest tissue resistance value of the user signal-processed from the signal processing unit to the heart failure status monitoring application of the user terminal. In addition, the method of using the chronic heart failure condition monitoring system using the chest tissue resistance value according to the features of the present invention for achieving the above object, (1) chest tissue resistance measurement unit resistance measurement of the chest tissue of the patient with chronic heart failure Measuring a value； (2) the signal processing unit of the chest tissue resistance measurement device filters the chest tissue resistance value of the chronic heart failure patient measured in step (1), converts it into a digital signal, and the transmission unit of the chest tissue resistance measurement device in the signal processing unit Transmitting the converted digital signal； And (3) a disease state determination unit of a user terminal in which a heart failure state monitoring application is installed, determining a disease state of a chroni
