With the deepening of informatization and intelligence across society, the construction of smart communities has boomed. However, the construction progress differs from place to place, and the outcome is also not quite satisfying. To promote the development of the smart community, we designed and implemented a grassroots community intelligent service platform. The system is designed to meet the needs of community governance, providing information management, population monitor, and grid management, etc. We also addressed some technical issues such as security, cache, and interface. The grassroots community intelligent service platform not only provides a convenient way to manage community affairs, but also helps reduce the workload of community workers and improve the governance effectiveness. We hope this work could make a positive effect on the development of smart communities.