The invention belongs to the technical field of smart communities, and discloses a high-synchronization concurrent group control method and system for a smart community, and a storage medium. The high-synchronization concurrent group control system of the smart community comprises an equipment management module, a parameter acquisition module, a data processing module, a data transmission module, a central control module, a synchronous beacon generation module, a code identification module, a synchronous adjustment module, an adjustment monitoring module and a beacon updating module. Integrated application of new-generation information technologies such as the Internet of Things, cloud computing and the mobile Internet is fully utilized, a safe, comfortable and convenient modernized and intelligent living environment is provided for community residents, and an intelligent community is truly achieved; a synchronous group control code contained in the synchronous sequence beacon is sent to a plurality of community management devices in a cooperative matching state through a central control module; therefore, the problem of sending efficiency of group control synchronous concurrent data is solved, network service resources are saved, and the resource efficiency of concurrent data transmission is greatly improved.