This paper is to examine the violation of teachers’ rights in the classroom. For the study it surveyed 466 teachers in 14 middle schools of Yang-San, Kyung-Nam province. The major findings are the follows. First, teachers have recognized the serious violation of teachers’ rights. Teachers have experienced violent behavior and verbal abuse from students in the classroom one to three times, on average with female teachers have experienced. Most of these incidents occur when students do not follow the teachers’ instruction. They mostly happen at the beginning of the first semester, during the class and in the classroom. Second, the improper behavior of students is the most common type of violation. In private school and the smaller area, improper behavior of the parents is more common. Female teachers and teachers in public school have experienced assault and verbal violence. Students tend not to conform to the direction of head teachers or teachers with more than 20 years experience.