A conception of "Dysproteinamische Myo-kardose" was first brought out by F. WUHR-MANN in 1950. After that, T. NANGU studied statistically the relation between electrocardiographic abnormalities and those of serum protein in various hepatic diseases, and made it clear. On the other hand, it is well known that generally speaking the variations of serum electrolytes are also important for the electrocardiographic changes, and many literatures concerning this problem have been listed. But the systematic study particularly pointed toward the relation between serum electrolytes and the electrocardiographic findings in hepatic diseases has scarcely been found. Therefore, the authors intended to make clear this problem, comparing influences of the dyselectrolytemia with those of the dysproteinemia upon electrocardiographic changes in hepatic diseases especially in hepatic cirrhosis. MATERIALS AND METHOD Twenty four cases of acute hepatitis, nine-teen cases of chronic hepatitis and fourty two cases of cirrhosis of the liver were included in the whole 85 materials without a history of the circulatory diseases. Measurements of the serum sodium and potassium were performed on the same day with the electrocardiography.