Objective　To assess the effect of micro-orthics teaching based on the online micro-teaching. Methods　116 students were randomly divided into test group and control group. With same clin-ical orthopedic teaching content

the micro-course network teaching mode and traditional teaching mode were adopted respectively. After the clinical internship

the two groups of students were assessed both in theoretical knowledge and clinical skills and self-designed questionnaire was carried out. The test results were analyzed by t-test and Spearman rank correlation method through SPSS 23.0 data analysis. Results The theoretical scores of students in two groups after online micro-teaching were compared with a t value of -3.976 and a P value of 0.000. The clinical skill assessment scores were compared with a t value of -5.999 and a P value of 0.000

indicating that the theoretical scores of the test group

especially the clinical skills assessment scores were significant higher than that of the control group (P<0.05). In the questionnaire survey results

for the understanding of the following five items

effectiveness of teaching methods

promotion of interaction between teachers and students

promotion of clinical learning

systematic establishment of clini-cal thinking

and deepening understanding of theoretical knowledge

the test group's satisfaction rate was obviously higher than that of the control group

and the difference was statistically significant (P<0.05). Conclusions　The micro-course online teaching model significantly improves the clinical teaching quality of micro orthopaedics and promotes students' autonomy and enthusiasm in learing. However

it is still neces-sary to further develop and improve the micro-curricular teaching and interactive system to achieve more systematic and long-lasting teaching effects.