Abstract: The author analyzed and discussed the problems of "dualization " model existing in the judicial authentication on medical malpractice in China's current forensic medicine and the necessity of building "unified" appraisal model from the aspects of legality, impartiality and honesty. Then the authors proposes the possibility to establishment of "unified" appraisal subject, appraisal methods and appraisal system to ensure scientific nature and impartiality of the judicial authentication for medical malpractice.