Background :Videogame addiction has become a serious public health issue with increased prevalence .Aim : to assess the prevalence and impact of video games addiction on academic achievement among secondary school students. Design: A descriptive research design was used to conduct this study Setting: The study was conducted in four randomly selected public secondary schools at Sohag city. Sample: A stratified random sample used to collect (400) of secondary school students. Tools: Three tools were used for data collection. Tool (1): interview questionnaire include two parts; part I: Demographic data of secondary school students part II: Questions related to students playing video game. Tool (2):Gaming Addiction Scale (GAS). Tool (3) Academic Performance Scale (APS).Results: There is a highly statistically significant strong negative correlation between score of video game addiction and score of academic performance r=0.121 p=0.015 .Conclusion: Excessive video game playing negatively influences student academic performance .Recommendation: Further research is required for more depth assessment of the prevalence of video game addiction among younger generation and its effect on their academic achievement.