摘要:The purpose of this research is to investigate family and upbringing background of students with bullying behavior in Islamic private schools in Pattani Province, Southern Thailand. The data for this qualitative study were collected through in-depth interviews with 15 teachers and school personnel, 15 bullying students, 15 bullied students, and 15 parents and guardians. Content analysis was performed with the data using logics, concepts, theories, research reports along with the context, and grounded theory method.The results of the study revealed that family and upbringing background had effects on students’ behavior. Upbringing characterized children’s behavior, especially children who were faced with domestic violence such as parents’ quarrels, and children being severely punished, etc. that might result in children absorption and imitation of such violence. The results of this study are beneficial directly to personnel and organizations related to children in policy making and measure taking in order to provide help and improve the problem of bullying so as to make students behave appropriately, and to prevent students from behaving more violently.