Objective To explore the application effect of the case-based morning report in the standardized training of redidents in the department of general surgery.Methods The experimental control method was used in this research.Fourty-three resident in standardized resident training program from October 2016 to January 2018 in the gastroenteropancreatic division of general surgery of Zhejiang Provincial People's Hospital were recruited and were randomly divided into two groups.Twenty-two students participating in the case-based morning report defined as the experiment group,and Twenty-one students participating in the traditional shift group defined as the control group.After the training,the questionnaire survey results and the score of the theoretical test of the two groups were compared.And the teacher evaluation reports were also collected.Results The score of the theoretical test of the experiment group and the control group were (88.1±3.8) and (82.8±4.4) respectively,and the difference was statistically significant (t=4.26,P<0.01).The students in the experimental group showed that the case-based morning report had more significant effects on improving their ability of the patient record writing,illness evaluation,auxiliary result interpretation,clinical thinking and medical paper writing(all P<0.05).The scoresof experiment group were 9(8.0,9.0),7.5(7.0,8.0),8(7.0,9.0),8(8.0,9.0),6(4.0,7.3),5(3.0,6.0)respectively.The scores of the control group were 5(4.0,6.5),6(5.5,7.0),2(1.0,2.0),6(4.0,7.0),3(2.0,4.0),2(1.5,3.0) respectively.Scores of satisfaction of experimental group were significantly higher than those in the control group [8(7.8,9.0) vs 7(6.5,8.0),Z=2.83,P<0.01].The teacher's questionnaire survey showed that all teachers believed that case-based morning report would be helpful to train the students' clinical practice ability,and thought that case-based morning report would be helpful to better understand the students' learning outcome.Most of the teachers were satisfied with the case-based morning report.Conclusions The case-based morning report is helpful to train the clinical reasoning,skill and the competency of resident students.The teaching effect in the standardized training of general surgery are satisfactory and worth popularizing.