Objective　To explore the necessity and effect of the motivational interviewing/MI curriculum in medical school students. Methods　Helping smoking cessation in standard patients with coronary heart disease was assumed as the expected goal. MI was carried out for medical school students to master basal knowledge and skills of MI and help using MI methods in persuading smoking quitting. The teaching mode of MI curriculum was comprised of a lecture series and small group dis-cussion with videotaped practice in role plays. Motivational Interviewing Treatment Integrity (MITI) scoring tool was applied to assess the teaching effect of MI curriculum with students' performance videotapes. Questionnaire was used to evaluate the quality and efficacy of the MI curriculum

and SPSS 13.0 was used to t test measurement data. Results　Analysis of the MITI scores showed students had general mastery of MI knowledge. Nevertheless

they did not reach recommended professional profi-ciency level. The scores of empathy and MI spirit in global ratings were (4.11±0.32) and (5.82±0.17)

respectively (recommended level

6 score). In the videotape evaluation of behavior counts

MI adherent reached (70.96%±24.34%) (recommended level

90%). Open question reached (31.42%±8.51%) (recommended level

70%). Total refection counts were (7.84±3.22) counts per video (recom-mended level

10). The standard questions recommended in MI for behavior change were better used by students. 93.75% and 87.50% students used ranking questions to evaluate the importance and con-fidence of smoking quitting. Nevertheless

the exploration questions about importance and confidence were less used to know the reason behind their ranking. The results of questionnaire showed that 83.33% students felt MI curriculum effective to help them improve confidence and skills in counseling with patients. 97.91% students thought the mastery of MI methods as an important skill for physicians to have. Conclusion　The teaching practice of MI curriculum in medical school students is necessary and feasible with good teaching results. It is worth for professional counseling regarding unhealthy be-havior change in patients.