Abstract: Based on the Infovision iWork-Safety platform, the video storage resource pool adopts a business and data separation architecture, and uses storage management nodes to schedule resources and load balance, and storage nodes focus on data access to build an efficient and elastic storage system. The system supports petabyte-level expansion, uses streaming file system and discrete storage algorithm to optimize efficiency and security, provides millisecond-level retrieval and 7×24 hours of uninterrupted service, fully clustered N+M redundancy design to ensure business continuity, is compatible with standard storage devices, supports intelligent operation and maintenance, and has been successfully applied to 1500 monitoring scenarios in Huangling No.2 Coal Mine.