Recommendation ITU-T F.743.2 defines the cloud storage service requirements in visual surveillance. Cloud storage enables service users to have ubiquitous, convenient, on‑demand network access to a shared pool of configurable storage resources, which can be rapidly provisioned and released with minimal management effort or service-provider interaction. Cloud storage can realize flexible and reliable data storage for large-scale visual surveillance, and its components are modularized and allocated dynamically based on real usage. This Recommendation provides the application scenarios and requirements for cloud storage in visual surveillance.