Method and system for accessing home cloud system by cloud terminal, and cloud access control device

Embodiments of the present invention provide a method for accessing a home cloud system by a cloud terminal, comprising: receiving access request information of a cloud terminal; and determining whether the access request information comprises content of preset information specification, the preset information specification comprising an access mode, request content, and an authentication identifier, and if yes, determining whether the authentication identifier in the access request information is consistent with a preset identifier in a home cloud system, and if yes, allowing the cloud terminal to access. The embodiments of the present invention further provide a cloud access control device and a home cloud system. By means of the foregoing manner, the present invention can prevent a cloud terminal from maliciously accessing a home cloud system, so as to improve security of the home cloud system.