Hepatic cyst is a rare disease, and cases have been reported since first discription of Bristowe in 1885. However there are difficulties in classification, diagnosis and treatment about this disease. The diagnostic metbod have been developed, and the ultrasonography is important and accurate diagnostic tool. We have experienced 46 cases of hepatic cystic disease at the Soon Chun Hyang University from Jan. 1980 to Jun. 1986 and analysed the following results obtained. 1) Incidence of hepatic cyst is about 0.53% and all patients were over the age of 40. 2) Male and female ratio was 1:2.3. 3) Solitary liver cyst only were 32 cases, solitary liver cyst with renal cyst were 3 cases, polycystic liver only were 14 cases, and combined polycystic liver and polycystic kidneys were 4 cases. 4) Size of the hepatic cysts was from 0.9 cm to 26 cm and 65% of the cases were below 2 cm 5) The location of hepatic cysts showed 20 cases in right lobe and 18 cases in left lobe of the liver. 6) The ultrasonography was important and accurate diagnostic tool.