Introduction: Food poisoning may occur as single sporadic cases or massive outbreak in any institution, including boarding schools. Early this year, Cheras District Health Office had implemented set of interactive games on food safety programme at two boarding schools in Cheras which had repeated incidences of food poisoning outbreak. This study aims to evaluate the effectiveness of interactive games on knowledge of food safety among school children in Cheras. Methods: This study is a retrospective study based on secondary data. Two boarding school with total of 135 students were. The students were divided into 4 groups and participates in all 4 modules of interactive games. There were 10 items pre and post questionnaire on food safety knowledge collected during the program with score ranged zero to ten. The data were analysed descriptively and analytically with paired t test. Results: The response rate of this study was 100 %. Majority of the respondents were Malays (68.1%) and male (66.7%). The mean score at pre and post were 6.78 and 7.72 respectively. Paired t test showed that there was a significant increase of 0.94 mean score of knowledge after the programme (p-value < 0.05, CI 95%= -1.212, -0.664). Conclusion: The knowledge scores on food safety of the students increased significantly after the interactive game. However, without control group, the improvement cannot be said solely due to the program itself.