The embodiment of the invention discloses a cloud access control method and device based on mobile storage equipment and equipment. The cloud access control method comprises the steps: employing a preset algorithm for a client address to obtain the final information of a client algorithm, and obtaining a client two-tuple according to the client address and the final information of the algorithm; obtaining a two-tuple of the mobile storage device from the mobile storage device; and if the client two-tuples and the mobile storage device two-tuples are consistent in information, allowing the client to authenticate to the cloud, otherwise, controlling the client to exit, and not allowing the client to authenticate to the cloud. The cloud access control method can control the system quality byusing mobile storage equipment which can be purchased anywhere on the market, and can control any part of the whole system by a service provider, so that introduction of risks is avoided, and the quality is improved, and the research and development difficulty of suppliers is reduced.