Endoscopic Retrograde Cholangiopancreatography(ERCP) is one of the important diagnostic methods for pancreatic cancer. It has an essential role in the early detection of pancreatic cancer. The ERCP findings of 35 cases of pathologically proven pancreatic cancer during the period of five and a half years from April 1977 through November 1982 at Kwangju Christian Hospital were studied. The results were as follows : 1. The ratio of male of female was 3.4 : 1, and most of the patients were over 40 years of age (88.5%). 2. The locations of the lesions were the head in 28 cases (80%), the body in 7 cases (20%), and the tail in 3 cases (8.6%). 3. The ERCP findings of pancreatic cancers were as follows ; 1) Encasement or obstruction of common bile duct, 18 cases (51.4%). 2) Obstruction of pancreatic duct, 16 cases (45.7%). 3) Irregular stenosis of pancreatic duct, 8 cases (22.3%). 4) Double duct sign, 7 cases (20%). 5) Diffuse narrowing of pancreatic duct, 2 cases (5.7%).