Objective: To understand current situation and influencing factors of school bullying among left-behind and non left-behind students in vocational colleges in western Hunan, and to provide reference for the prevention and control of campus bullying in vocational colleges in poverty-stricken areas. Methods: A multi-stage stratified random cluster sampling method was used to select 1 241 students from higher vocational colleges in Xiangxi for questionnaire survey. The survey included basic demographic characteristics, health-related behaviors and school bullying. Associcted factors were compared among students with and without school bullying by using the χ2 test and Logistic regression. Results: The reported rate of school bullying in vocational colleges was 41.82%. The reported rate of left-behind students (45.05%) was higher than that of non-left-behind students (39.21%). The difference was statistically significant (χ2=4.29,P<0.05). Multivariate unconditional Logistic regression showed that male students and good parental relationship negatively associated with school bullying among left-behind students(OR=0.55，0.47). While rural students, 5 years of senior vocational, smoking, drinking, and game addiction were positively associated with school bullying among left-behind students(OR=1.93,2.57,2.51,3.95,4.73); good relationship with mothers was associated with less school bullying(OR=0.40), while smoke, drinking and game addiction was associated with more school bullying among non left-behind students(OR=1.86,2.32，3.81)(P<0.05). Conclusion School bullying among students in higher vocational colleges in western Hunan is highly prevalent. The reporting rate among left-behind students is higher than that of non-left-behind students. Due to different factors, joint intervention measures by government, schools and families should be carried out as soon as possible.