(1) ASVS method was introduced for the first time in China to improve the level of localization diagnosis of insulinoma; Successfully diagnosed and treated the world's first CCK tumor. It has a prominent position in the field of diagnosis and treatment of pancreatic endocrine tumors. (2) Establish an internationally recognized chronic pancreatitis (cat) model. (3) Total pancreaticoduodenal transplantation was successful in 50 cats, and the histological changes in different periods after transplantation were reported. (4) Firstly, it is suggested that ascites amylase can evaluate the severity and prognosis of acute pancreatitis and advocate the concept of non-surgical treatment of acute pancreatitis. Make outstanding contributions to reducing the mortality rate of acute necrotizing pancreatitis. (5) Firstly, it is pointed out that the suture necrosis of pancreatic wound is an important cause of pancreatic fistula, and the largest experience in diagnosis and treatment of pancreatic fistula in China is reported, which significantly reduces the incidence of pancreatic fistula and improves the treatment level of pancreatic fistula. (6) In recent years, we have promoted the early diagnosis of pancreatic cancer, advocated the comprehensive treatment of pancreatic cancer, established a pancreatic cancer research center combining clinical and basic, and are establishing a multi-center collaboration group including the United States and Hong Kong. He published 86 academic papers and participated in the compilation, translation and publication of more than 20 medical monographs. At present, he is the project leader of the tenth five-year plan, the national natural science foundation, the Sino-US cooperation project and the national 863 project. Successfully held the 26th annual meeting of international cancer registration. The third national all-cause survey is under way. Trained 1 graduate students and 8 doctoral students.

In 2003, he was awarded the National Achievement Award for Returned Overseas Students by the Central Organization Department and other six national ministries and commissions. In 2004, he was awarded the "Sir's Cup" by China Hospital Management Society. In 2004, he received special government allowance.