Objective: To understand the relationship between school environment and campus bullying behavior of junior high school students, and to provide scientific basis for the intervention of campus bullying behavior. Methods: Based on the data of "China Education Panel Survey" from 2014 to 2015, the school environment and self reported campus bullying behaviors of 9 300 junior high school students were analyzed. Results: The two level mixed effect linear regression model showed that the frequency of boys campus bullying behavior was higher than girls( B =0.356, P <0.01). Junior high school students in the school with higher student teacher ratio and school average class status had higher frequency of campus bullying behavior( B =-0.007, -0.004, P < 0.05 ). The negative correlation between school average class status and the frequency of bullying behavior of boys was greater than girls( B = -0.006 , P <0.01). Conclusion Prevention and treatment of junior high school students campus bullying not only needs to start from the individual students, families and peer groups, but also needs to pay attention to the school environment, reduce the school socioeconomic segregation, and pay more attention to boys campus bullying behavior.