目的 对杭州市G20峰会病媒生物防制技术管理与实施机制的形成过程及作用效果进行探讨，为今后国内大型活动病媒生物防制工作提供经验。方法 采用现况调查方法，对2016年1-9月杭州市各专业队伍在G20峰会病媒生物防制中的职能作用及综合防制效果进行调查，对主要病媒生物防制前后的下降率进行比较。爱国卫生运动委员会负责各方技术力量的组织协调和管理工作。疾控系统作为辖区内病媒生物防制技术支撑机构，对G20峰会病媒生物防制进行风险评估、方案制定、培训演练、质量控制、数据分析和提出策略建议等。有害生物防制业作为病媒生物防制技术的主要实施机构，开展病媒生物防制常规监测与控制工作。结果 杭州市G20峰会病媒生物防制工作取得良好效果，会议召开期间病媒生物不良事件零报告。核心保障区域2016年8月较5月蚊幼虫路径指数下降79.4%；蝇幼虫孳生地阳性率下降100%；室内蟑迹阳性率下降69.0%；室内鼠迹阳性率下降66.1%。结论 杭州市大型活动病媒生物防制技术管理与实施机制充分整合了各方技术队伍职能，责任明晰、运转高效，可为国内相关保障工作提供有效借鉴。

Objective To investigate the formation process and effect of the management and implementation mechanism of vector control technology during Hangzhou G20 summit, and to provide experience on vector control for future large-scale activities. Methods A cross-sectional survey method was used to investigate the functional role the professional team and vector control effect at G20 summit from January to September 2016. The Patriotic Health Campaign Committee Office (PHCCO)was responsible for the organization and management of vector control operation forces. Disease control and prevention center(CDC), as vector control technical supporting institutions in their areas, carried out risk assessment, vector control program formulation, training, quality control, data analysis, and policy recommendation. Pest control operations enterprises, as the main technical implementation enterprises, carried out routine vector monitoring and control work. Results In close cooperation with the relevant professional institutions, vector control program has achieved good performance, and report of vector adverse event was zero in Hangzhou G20 summit. From August to May 2016, mosquito larvae path index decreased by 79.4%, the positive rate of fly larvae decreased by 100%, the positive rate of indoor cockroach trace decreased by 69.0%, and the positive rate of indoor rat trace was down by 66.1%. Conclusion The management and implementation of the vector control technics of large-scale activities in Hangzhou city has fully integrated the functions of all teams, the responsibility is clear with high efficiency. It can provide an effective reference for domestic related work in the future.