An analytical observation was carried out on clinical symptoms, physical findings, etiology, precipitating factors, pulse rate, and blood pressure manifested by 115 patients admitted to the Kyung hee university Hospital under the diagnosis of congestive heart failure for a period of October 1971 to September 1974. The results were as follows: 1. The disease affected female 1.4 times more frequently than male and occured most frequently in the 6th decade (26.1%), and its incidence decreased in the 7th decade (22.6%). 2. The important causes of congestive heart failure were hypertensive heart disease (39.7%), rheumatic heart disease (26.1%), cor pulmonale (13.9%), atherosclerotic heart disease (6.1%), postpartum heart failure (6.1%) and pericardial disease (3.5%). The unknown etiology was 3.5% of all cases. 3. The most common precipitatiog factors of the 106 patients of congestive heart failure were infections (59.5%), especially in the upper respiratory tract infection (37.8%). The physical exertion, pregnancy and labor, psychic stress, angina, myocardial infarction, and discontinuation of Tapazol and digitalis were followed. 4. The most common symptoms and signs were the dyspnea (93%), and the next common were pulmonary rales (65.2%), hepatomegaly (59.1%), distention of cervical vein (55.7%), pitting edema (44.3%) and cardiac murmur (38.3%) on admission. 5. The increased pulse rate over 101/min. was about 38.3%, but less than 60/min. was found in 4.3% only. 6. The electrocardiographic findings were abnormal except one case out of 107 cases. The left ventricular hypertrophy (48.1%), atrial fibrillation (24.5%), and bundle branch block (21.7%) were frequently observed. 7. The range of systolic blood pressure measured in 43 patients who had been suffered from hypertensive heart disease were disclosed that 221-240 mmHg (23.3%), 161-180mmHg (20.9%), and 181-200mmHg (20.9%) in order.