提出了采用专线 (DDN)、微波和公用电话网 (PSTN)等多种通信方式 ,构建县 (市 )级用电营业管理广域网络的方案 ,通过“网上发布”、“网络共享”、“文件传输协议 FTP”和“电子邮件 E- mail”等多种传输方式实现数据及时、准确的传输 ,完成乡镇与县 (市 )之间的远程数据通信和对数据的汇总处理 ,实现全县 (市 )集中开票和用电营业信息的统一管理等功能。以随州供电局为例 ,详细阐述了县 (市 )级用电营业管理广域网络的设计思想、网络配置及应用情况 This paper proposes a scheme of establishing a county (city) level electricity management business wide area network by using a variety of communication methods such as DDN, microwave and public switched telephone network (PSTN). Through online publishing, network sharing, Transmission protocol FTP “and” E-mail "and other means of transmission to achieve timely and accurate data transmission, the completion of the township and county (city) between the remote data communication and data summary processing, to achieve the county (city ) Centralized billing and electricity business information unified management and other functions. Taking Suizhou Power Supply Bureau as an example, this paper elaborates on the design idea, network configuration and application of WAN (county)