The invention relates to a cloud storage system based on electric power data. The system comprises a control server and a proxy server, an object server, a container server, an account server which are respectively connected with the control server. The system comprises a verification server and a cache server, the verification server and the cache server are respectively connected with the proxyserver, the verification server carries out identity verification on data in the proxy server, and the cache server caches the data in the proxy server. Compared with the prior art, the method has theadvantages of ensuring data consistency, ensuring stable operation of the system, reducing management difficulty and the like.