Huge improvement has been made in the diagnosis and treatment of endoscopic ultrasonography (EUS) and more doctors have begun to focus on this subject with the increased level of EUS. Beijing Friendship Hospital has built a comprehensive system for the teaching method and process which include basic information screening of trainee and standardized training of perceiving and operating ability. There were 3 grades training of computer simulation

animal simulation and operation on real patients. During the first month of training

trainees accepted training with computer simulator for at least 100 hours

and underwent animal simulator during the second month

then underwent EUS on the real patients under supervision of instructors during the third month. By doing this

residents can master the technique of treatment and diagnosis of EUS in a safer and better way.