To explore the application values of scenario simulation teaching of case-based leaning (CBL) combined with improved mini-clinical evaluation exercise (Mini-CEX) in standardized training for emergency department residents.

A total of 41 residents participating in emergency standardized training at the Nanjing Drum Tower Hospital Affiliated to Nanjing University Medical School from August 2021 to July 2023 were selected as the research subjects. They were divided into an observation group (n=21) and a control group (n=20). The observation group received clinical training using scenario simulation based on CBL combined with improved Mini-CEX teaching method, while the control group received traditional teaching method. At the end of the training, theoretical test and three-station Mini-CEX assessment were conducted for both groups, and the satisfaction of the students was assessed using a questionnaire survey.

There was no statistically significant difference in theoretical scores between two groups (P>0.05), but the scores of three-station Mini-CEX assessment and teaching satisfaction in the observation group were significantly higher than those in the control group (P< 0.05).

Scenario simulation teaching based on CBL combined with improved Mini-CEX can significantly improve the comprehensive diagnosis and treatment level of emergency department residents in standardized training, enhance teaching quality, and increase residents' satisfaction. It is worth trying and promoting in emergency training bases.