Introduction: Computer games are a major part of leisure time for students. In case of not observing the necessary precautions, these games can have a devastating impact on children’s body and soul, causing structural changes in the behaviour and norms.Health educators of each school are the most influencing peopleto maintain physical and mental health of children. Therefore, this paper is aimed to study Knowledge, attitudes and behaviour of this group about the effects of computer gameson the health of students.
Materials & methods : In this cross-sectional studyof kap Studytype, one hundred educators employed in middle schools were attended. Selecting the samples were done using systematic sampling of specimens from three cites aspresentersof Ilam province. The data collection tool was a questionnaire whose validity was conducted by specialists and itsreliability score was 0.769 based ontest-retest andCronbach's alpha. The data were analysedusing SPSS18 and appropriate statistical tests.
 Findings: 62% of participants were male and 80% were married. 52% have had less than 15 years history and 68% hadbachelor degree. Mean knowledge score of participants was1.3± 0.839 and the mean attitude score was 39.1± 3.84 , respectively. While the average behaviourscore of the study participants also was 1.86±1.03.
 Discussion & Conclusion: Despite the relatively positive attitude, knowledge and practice of educators about the impact of computer games on children's health is poor. It seems appropriate intervention and regulation enforcement in schools can be a helpful way.