Distributed video monitoring system and method thereof for keeping data consistency

The invention discloses a distributed video monitoring system and method thereof for keeping data consistency. The method includes the following steps: a video monitoring service node receives a data modification request of a video monitoring client and sends the data modification request to a central management platform, and the central management platform modifies corresponding data in a video monitoring service database; a centralized management platform issues a data modification request and modifies corresponding data in the video monitoring service database; and data synchronization is carried out on memory database of each video monitoring service database and the video monitoring service database. By adopting the invention, modification on data at the centralized management platform and the client are centralized in the video monitoring service database, the modified data in the video monitoring service database is synchronized into corresponding memory database during synchronization, thus avoiding problem of mutual overlaying of data during synchronization and ensuring the data consistency of the memory database of each service node and the video monitoring service database.