Abstract:With the growing scale of urban infrastructure construction, infrastructure information management has become a new demand. The life-cycle management of bridge engineering from design and construction to operation and maintenance can greatly improve the efficiency of bridge management by realizing information integrated processing through the Internet. The prosperity of mobile communication technology provides the technical basis for mobile terminals to intervene in the Internet, close the gap between the Internet and the daily work and life. Both of the connection of the mobile terminal to the Internet and the development of bridge life-span management system with lightweight application programs can not only improve the bridge information flow and transmission rate but also provide a theoretical basis for decision-making in the later operation stage of the bridge through effective information integration. Through the application of mobile terminal, the development and use of wechat small program of bridge life cycle management system are studied. The results show that: Based on wechat small program, the establishment of bridge life management system can greatly improve the efficiency of bridge management, provide information basis for decision-making of bridge operation stage, and realize efficient and convenient bridge life management.