EPON(以太网无源光网络)_EOC(以太网数据通过同轴电缆传输)是实现下一代广电(简称NGB)三网融合的主流技术。文章深入分析了其网络结构，提出了下一代广电计费系统的需求特点，在此基础上设计了一套实现下一代广电计费系统优化的技术解决方案，并经实验证明了该方案的可行性和有效性，为广电三网融合的进一步发展提供了参考。

EPON-EOC-based access technology is a mainstream proposal for Triple-play of China’s Next Generation Broadcasting Network (NGB). This paper makes an in-depth analysis of its network architecture and presents the demand features of the NGB billing system and designs on this basis a technical solution to its optimization. This solution is verified in experiments to be feasible and effective, offering a valuable reference for the further development of NGB Triple-play.