The primary task of urban managers is to build a digital, green, and intelligent urban grid. Based on the current situation of China’s digital city construction, combined with the experience of Internet of Things city construction at home and abroad, this paper proposes a digital city construction mode suitable for China’s current Internet of Things and sensor technology. On this basis, the main dimensions of the economic elements of the digital city are summarized and the system model of the digital city is constructed using the co-word analysis method. Finally, the economic model of the digital city system is analyzed with a case combined with the discussion of the digital city system theory. The experimental results show that the digital city-integrated public platform has achieved the goal of giving priority to information services, supplemented by data management services in the form of Web services. Urban economic cycle development has good usability.

城市管理者的首要任务是建设数字化、绿色化、智能化的城市网格。本文基于我国数字城市建设现状，结合国内外物联网城市建设经验，提出适合我国当前物联网和传感器技术的数字城市建设模式。在此基础上，总结了数字城市经济要素的主要维度，并利用共词分析方法构建了数字城市的系统模型。最后，结合数字城市系统理论的讨论，对数字城市系统的经济模型进行了分析。实验结果表明，数字城市综合公共平台实现了以信息服务为主、Web服务形式的数据管理服务为辅的目标。城市经济循环发展具有良好的实用性。