The authors report on 145 cases treated surgically for chronic pancreatitis. 128 cases were operated on principle for association of pain and weight loss, 17 cases under necessity for complications. Surgical procedures were most often pancreatico-duodenectomies (75 cases), left pancreatectomies (34 cases) or rarely total pancreatectomies (4 cases), more rarely wirsungo-jejunostomies (32 cases). Choice of surgical procedures were based on anatomical and clinical arguments, but mainly on E.R.C.P. Post-operative mortality, was 8.2% after pancreatic resections and 3.7 after pancreatico-jejunostomies. Secondary mortality were respectively 13% and 11.5%. The overall mortality was 21% after resection and 15% after drainage. Late fonctional results (after 5 years) were in favour of resection (good results 51%). After drainage (good results 22%) initial good results deteriored with time.