By analyzing the differences of Yi and Han male students’ smoking states , this paper tends to analyze the factors causing smoking behaviors in this area. It aims to provide a reference for drafting feasible measures to control smoking in the college. The method is to take random samples, 324 male students investigated by using questionnaires. The investigation results show that the rate of Yi students is higher than that of Han students （P＆lt;0.05）in terms of the indexes of smoking rate and smoking frequency. The paper concludes that smoking rate of male students in this college is higher than the average level of the nation. The situation is very severe. Measures to interfere smoking should be adopted in time and health education should be enhanced.