This systematic review examines preventive interventions for internet addiction in young children under 12 years old. The study aimed to explore and discuss existing interventions and future directions to prevent or reduce the risks of internet addiction in this vulnerable population. The review was conducted following PRISMA guidelines, searching four databases (Scopus, Web of Science, PubMed, and PsycINFO) and including 14 primary studies. The preventive interventions were categorized into four approaches: children's education, parenting strategy, strategic physical activity, and counseling. Ten interventions showed promising efficacy in preventing or reducing internet addiction risks, with small-to-medium effect sizes. Interventions that enhance children's digital literacy and competencies in healthy online behavior were more effective than those that force screen time reduction. Interventions shifting children's focus to real-world activities also demonstrated promise. The review identified strengths and limitations of each approach, emphasizing the need for sustainable and accessible interventions. Future studies should consider family conditions, provide adequate implementation training, and develop design guidelines to minimize internet addiction risks. Product developers and policymakers are encouraged to contribute by creating child-friendly digital tools and policies. The study highlights the importance of involving multiple stakeholders and integrating multiple intervention approaches to improve long-term effects and accessibility.This systematic review examines preventive interventions for internet addiction in young children under 12 years old. The study aimed to explore and discuss existing interventions and future directions to prevent or reduce the risks of internet addiction in this vulnerable population. The review was conducted following PRISMA guidelines, searching four databases (Scopus, Web of Science, PubMed, and PsycINFO) and including 14 primary studies. The preventive interventions were categorized into four approaches: children's education, parenting strategy, strategic physical activity, and counseling. Ten interventions showed promising efficacy in preventing or reducing internet addiction risks, with small-to-medium effect sizes. Interventions that enhance children's digital literacy and competencies in healthy online behavior were more effective than those that force screen time reduction. Interventions shifting children's focus to real-world activities also demonstrated promise. The review identified strengths and limitations of each approach, emphasizing the need for sustainable and accessible interventions. Future studies should consider family conditions, provide adequate implementation training, and develop design guidelines to minimize internet addiction risks. Product developers and policymakers are encouraged to contribute by creating child-friendly digital tools and policies. The study highlights the importance of involving multiple stakeholders and integrating multiple intervention approaches to improve long-term effects and accessibility.