To explore the effect of navigation assisted surgery system in the medical teaching in the Department of neurosurgery. Method：From May 4

2015 to June 3

2015

51 medical undergraduates of clinical medicine in the Second Affiliated Hospital of Xi'an Jiaotong University were randomly divided into experience group(Navigation assisted surgical technique system teaching

n=25)and traditional group(Traditional teaching

n=26)．Practical effect of the different modes was evaluated by questionnaire and examination results．Data were analyzed by SPSS 20.0. Enumeration data were compared between groups using χ2 test and measurement data were manifested x±s with P<0.05 signifying significant difference．Result: After the teaching

the theoretical results of the experimental group and the control group were (83.05 ± 6.03) and (74.32 ± 7.12)

the t value was 4.96

and the P value was 0.005. Clinical skills scores were (89.43 ± 5.12) and (81.11 ± 8.02)

t value was 2.91

P value was 0.029. The questionnaire shows that students prefer the teaching methods of the experimental group. Conclusion: Compared with the traditional teaching

the Navigation assisted Department of neurosurgery operation has obvious advantages.It can make students more active to participate and obviously inspiring their learning interest

improving the test results

and achieved good teaching results.