School bullying is defined as “Unwanted, aggressive behavior among school aged children that involves a real or perceived power imbalance”. The values of freedom, tolerance, respect for diversity and non-discrimination are cornerstone values of European societies, but bullying at schools damages these values. Bullying issue is a key factor in early school leaving, and has serious and long-term effects. It affects mental health and the academic performance of children. The coordinating school(Slovenia) felt the necessity of implementing this project based on the needs analysis with the aim of increasing academic achievement, raising the rate of university placement, dropping out of school and achieving social inclusion, which is in accordance with EU 2020 goals and the achievement of schools’ own strategic goals, so the coordinator collaborate with other 5 schools ( Romania, Italy, Greece, Turkey, Slovenia), which have attach importance to bullying issues and have good practices about it.