In this the particular article we will study through line of inquiring conclusions the phenomenon of school intimidation - endoscopic' violence, that internationally is reported with the term bullying which concerns the violence that is practised from and at the expense of the students, professors - students, students - professors. In the beginning, we will describe the forms of school intimidation – endoscopic violence and dimensions of these. Then we will sketch out the sex of both perpetrators and victims. In conclusion, succeed the repercussions of intimidation and the role that this plays. In this work present conclusions taking into consideration: 1. To Greek School, 2. The Discriminations of School Violence, 3. Aggressiveness, 4. Prevention of School Violence, 5. Change of School climate with Strategies of Teaching.