Bullying and cyberbullying bring adverse physical and psychological impacts on individuals and an economic burden for society. Scholars have developed anti-bullying intervention programs to combat these problems. This meta-analysis aims to examine and compare the effectiveness of digital health interventions (DHIs) in reducing bullying and cyberbullying. A comprehensive search was conducted using databases (PsycINFO, Social Service Abstracts, Sociological Abstracts, MEDLINE, ERIC, and EMBASE). Quasi-experimental and randomized controlled trials (RCTs) published before 31 January 2021 that reported the effects of DHIs in reducing bullying or cyberbullying were included. The 16 studies included in the synthesis reported overall random effect sizes (Cohen’s d) for bullying and cyberbullying reduction were 0.41 and 0.19, respectively. The results provide evidence on the effectiveness of DHIs, comparable to that of face-to-face interventions. The subgroup analysis revealed that the critical components of effective DHIs include training on bystander and bully–victim dual roles, coping skills, and interactive serious games. It highlights the promising effects of digital health approaches in bullying and cyberbullying interventions. Our review identifies avenues for future research on the development of more effective DHIs to reduce bullying and cyberbullying.

欺凌和网络欺凌给个人带来不利的身心影响，给社会带来经济负担。学者们制定了反欺凌干预计划来解决这些问题。该荟萃分析旨在检查和比较数字健康干预 (DHI) 在减少欺凌和网络欺凌方面的有效性。使用数据库（PsycINFO、Social Service Abstracts、Sociological Abstracts、MEDLINE、ERIC 和 EMBASE）进行了全面搜索。包括在 2021 年 1 月 31 日之前发表的准实验和随机对照试验 (RCT)，这些试验报告了 DHI 在减少欺凌或网络欺凌方面的作用。综合中包含的 16 项研究报告了总体随机效应大小（Cohen's d) 欺凌和网络欺凌减少分别为 0.41 和 0.19。结果为 DHI 的有效性提供了证据，与面对面干预相媲美。亚组分析显示，有效 DHI 的关键组成部分包括对旁观者和欺凌者-受害者双重角色、应对技巧和互动严肃游戏的培训。它强调了数字健康方法在欺凌和网络欺凌干预中的可喜效果。我们的审查确定了未来研究开发更有效的 DHI 以减少欺凌和网络欺凌的途径。