Abstract: Teaching quality assurance of university-affiliated hospitals is a key issue in the study of higher education, in which the quality of course teaching directly determines the quality of personnel training, and is an important means of improving teaching quality. At present, most of the medical schools in China still rely on the traditional mode of course evaluation, and there are problems such as unsound course evaluation system and unsatisfactory effect of course evaluation. This study takes as an example Peking University Third Hospital, based on an in-depth analysis of the traditional curriculum evaluation model, the six sigma management method is introduced to systematically improve the expert evaluation model. The design and implementation are carried out from the aspects of perfecting rules and regulations, formulating evaluation indexes, constructing expert online evaluation model and forming closed-loop feedback mechanism. A comprehensive evaluation of the online expert assessment model's efficacy was conducted, incorporating longitudinal analysis of expert evaluation metrics and thematic analysis of focus group interviews. The results show that the number of assessments under the expert online assessment model (414 per year from 2022 to 2023) was 16.8 times that of the traditional assessment model (24.7 per year from 2019 to 2021). The hours of expert assessment increased from 50 hours in 2019 to 1 170 hours in 2023, an increase of 22.4 times; the average score of expert online evaluation was 93.24±0.88, which was not significantly different from that of traditional evaluation mode (93.83±1.15) (P=0.653). The expert online evaluation model based on six sigma management method has been recognized by teachers, departments and medical students. The expert online evaluation model based on six sigma management method is helpful to improve the efficiency of expert evaluation, ensure the stability of evaluation results, and provide a new practical path for the teaching quality assurance of university affiliated hospitals.

Key words: Clinical medicine, Quality of teaching, Expert online evaluation, Six Sigma management method