本文对大学生吸烟行为及其影响因素进行了抽样调查。结果显示：吸烟率为１６．６％，男性吸烟率为２４．７５，女性为１．８％。吸烟行为初次发生在小学４６人，中学６５人，大学１５人。首次吸烟原因以好奇模仿为主，达５０．８％。调查对象中多数对吸烟有害有所认识，但较肤浅。吸烟学生中有戒烟愿望者达７６．８％。影响吸烟行为的相关因素中，教师、家长和朋友的吸烟行为及其态度是其重要原因。提示：大力提倡在小学、中学、大学各阶段对学生进行系统的健康教育、营造无烟环境是必要的。 This paper carries out a sample survey of smoking behavior and its influencing factors in college students. The results showed that: smoking rate was 16.6%, male smoking rate was 24.75, women 1.8%. The first smoking occurred in 46 primary schools, 65 secondary schools and 15 universities. The first reason for curiosity is imitation, reaching 50.8%. Most of the respondents were aware of the harmful effects of smoking, but more superficial. There are 76.8% of smokers who have quit smoking. Among the factors that affect smoking behavior, the smoking behaviors of teachers, parents and friends and their attitudes are the important reasons. Hint: Vigorously advocating systematic health education for students at all stages of primary, secondary and university education is necessary to create a smoke-free environment.