Abstract: Hainan earthquake emergency technology platform is a supporting platform for the technical linkage service of earthquake emergency in Hainan Province, which plays an important role in rapid assessment, command and dispatch in earthquake emergency work. This paper focuses on the analysis of the working ideas and technical design of the upgrading and construction of Hainan earthquake emergency technology platform. Since the platform was put into operation in 2022, Hainan earthquake emergency command center and the earthquake emergency departments of 19 cities (counties) across the province have realized the interconnection within the LAN, data transmission and disaster reporting, and provided the local government departments at all levels with efficient and integrated command and decision-making services in practical work.