The development of the new-generation science and technology and interdisciplinary and cross-field integration have greatly improved the smartness of fields such as parks, transportation, energy, and security. However, due to the data barriers and lack of cross-business and cross-system collaboration, the smartness of city operation and management is still low. Taking the Happiness Forest Belt (XingFu LinDai) Project as an example, this study aims to fully and efficiently use the daily supervision and monitoring data on this forest belt to meet basic city operation and management requirements such as service, operation, management, visual display, and auxiliary emergency command decision-making. For this purpose, it designs a system architecture and a function system from the top down and then builds a smart operation and management platform that is expected to serve as a reference for smart city construction.