Behaviour problems in young children are fairly common. It has been suggested that approximately 5-14% of preschool children exhibit problem behaviour. There are many reasons for behaviour problems in preschool-aged period children. Researches reveal that link between victimisation and individual differences. However, but still, we do not know the prevalence of the possible precursors of peer victimisation among preschool children. The aim of this study was to investigate the predictive effects the level of behaviour problem variables have on peer victimisation of five to six-year-old children attending preschool education. The sample group of the research included 152 normally developed children selected by simple random sampling method among 5-6 years old children receiving preschool education in the city centre of the province of Çorum in Turkey. The relational survey method was used in this study. The Preschool Behaviour Questionnaire (PBQ) and the Peer Victimisation Scale were used in this study. The PBQ and the Peer Victimisation Scale were completed by the teachers. Results of this study concluded that there was a significant positive relationship between the level of child behaviour problems variables and peer victimisation. In addition, results show that behaviour problems of five to six-year-old preschool children have a significant predictive effect on their peer victimisation.