Abstract: Objective To explore the construction of "micro-ward" teaching guided by post competence in negative pressure wards and the effect of it in the standardized training for resident doctors(residential training) in department of infectious diseases. Method A total of 115 trainees who participated in residential training in the department of infectious diseases of Changhai Hospital from August 2024 to February 2025 were randomly assigned to the study group (n=56) and the control group (n=59). The study group adopted the "micro-ward" teaching mode guided by post competency, while the control group adopted the traditional teaching mode. The learning effect was evaluated through theoretical examination, skill examination, case analysis, post competency evaluation and questionnaire survey. Result The total score, theoretical assessment, skill assessment, case analysis and post competency assessment scores of the study group were higher than those of the control group (P<0.05). Among them, the scores of multiple-choice questions in theory assessment, fluency in skill assessment, clinical judgment ability, treatment decision-making ability, humanistic care literacy, overall competence and other specific items in case analysis had statistical significance (P<0.05). The questionnaire survey showed that F value of the comprehensive attitude coefficient of the study group in three items of "promoting collaborative cooperation, improving subject interest and increasing theoretical gain" was highest. Compared between the two groups, F values of 9 items in the study group were higher than those in the control group, among which F values of "strengthening independent learning, encouraging clinical enthusiasm and stimulating scientific research interest" had the greatest difference. Conclusion In the negative pressure ward of department of infectious diseases, the application of "micro-ward" teaching guided by post competence in residential training can effectively improve the assessment results of students at the end of training, improve students' attention to infectious diseases, and effectively promote cooperation.

Key words: Negative pressure ward, Post competence, Department of Infectious Diseases, Standardized training for resident physicians, Micro-ward