Abstract: Objective To study reasons that the quality of medico-legal autopsy in the medical tangle varies from different area. Methods Collecting the cases of medical tangle in two medico-legal agencies, then counting percent of classes on the ten key-points, analyzing the data of the cases by chi-square test and t-test. Results It is indicated that the applied methods and standards of the two agencies are different. There are more different in seven keypoint of medicolegal autopsy by chi-square test. Conclusion Six key-points are found to be more important to medico-legal appraiser, standardization of forensic autopsy, standardization of picking up specimen from the body, diagnosis standardization of the cause of death, consultation system and standardization of writing documents on medico-legal autopsy.

Key words: medical tangle, medicolegal autopsy, t-test, identifying quality, management mechanism