Abstract: This paper is to introduce six aspects concerning standardized patient training such as hardware preparation,recruitment,trainers'preparation,training procedure,evaluations and applications at Peking University Third Hospital.The standardized patients could provide actual cases for teaching and standard evaluations for medical students.It could also make up flome deficiencies of clinical medical edu cation.The SUCCessful use of standardized patients improves students'abilities of clinical thinking and clinical performance.The paper also indicates the problems and solutions occurred during the standardized patients training.