快速城市化使儿童青少年的生存环境正面临巨大改变，学生身心健康的多种社会决定因素也日趋复杂化。近年来校园暴力事件频发已引发了社会的广泛关注，确保校园安全成为实现学生健康发展的最基本保障。然而，作为校园暴力发展的初级形式，普遍存在但后果严重的校园欺负行为并未引起教育管理者足够的重视。本研究选取城市地区中小学生人群样本，通过定性和定量调查方法，调查校园欺负行为的个体、同伴和家庭、学校以及社会多层次的影响因素，构建当前城市化背景下儿童校园欺负行为发生机制的多水平社会生态学模型；同时，通过专家咨询和实证干预研究等方法，开发和论证有效的、具可行性的教育管理干预策略与措施。本研究创新之处在于，管理对象上不仅涉及欺负者与被欺负者，也包括欺负事件的旁观者甚至全体学校师生；管理方法上改变惩罚性的欺负应对措施，引入侧重于"防"的"反校园欺负"综合教育管理策略。研究结果对于制定校园安全管理政策具有较强的指导意义。

Rapid urbanization brought about tremendous change on children and adolescents' living environment with a more complex web of social determinants of their physical and mental health. In recent years, increasing number of notorious school events in China has drawn a lot of public attention. To ensure campus safety and peacefulness is a fundamental requirement for children's healthy development. As the most prevalent form of school violence but with detrimental outcomes and a precursor to more serious forms of violent behavior, school bullying unfortunately has not been paid adequate attention from school administrators. By using methods of both qualitative interview and quantitative questionnaire survey, the present study is designed to firstly investigate multi-level influences (individual level, peers/family level, school level, etc.) on school bullying behavior among about 6000 students and their parents from 60 local public and migrant schools in Shanghai, with an aim to construct a social ecological model on the problem behavior of school bullying. Based on this obtained model, Dephi approach and a comparison study of school based intervention with 2 schools of intervention and 2 schools of control will be conducted to develop a feasible and effective intervention package. Creativity of the present study lies in the fact that for the first time our study subjects are not only victims/bullies but also are within a larger group of related population including bystanders and teachers. And also, we decide to take non-punitive coping strategy towards bullying behavior with a focus on prevention. The results will be informative and instructive for establishing school health policies on anti-bullying and safety management.