对武汉市城郊４所中学初一学生的吸烟状况以及影响学生吸烟的外在因素进行了调查。通过多因素非条件Ｌｏｇｉｓｔｉｃ回归分析，结果表明在４６项外在因素中，烟草公司促销赠品、青少年获得香烟方式和接受别人递烟次数、外祖母吸烟为影响青少年吸烟的重要外在因素，其比值分别为５４０、１９６、１７４和１７０，反映了大众传媒、社会环境和家庭对青少年吸烟的影响，为今后制定预防青少年吸烟的干预措施提供了依据。 A survey was conducted on the smoking status of the freshmen in four middle schools in suburban Wuhan and the external factors that influence their smoking. According to the multi-factor non-conditional Lo-regression analysis, the results showed that out of the 46 external factors, the tobacco companies promotional gifts, adolescents access to cigarettes and other people to receive the number of cigarettes, foreign grandmother smoking as an important external factors affecting teenagers smoking, the The ratios of 540, 196, 174 and 170, respectively, reflect the influence of the mass media, social environment and family on young people’s smoking and provide the basis for the future formulation of interventions to prevent young people’s smoking.