A pet cage including a cage body, wherein a door frame is fixed to the cage body, and the door frame is provided with a feed port therein. The pet cage further comprises a door plate, the door plate is connected to the door frame through a slidable turnover device, which enables the door plate to be turned over and opened after sliding a certain distance relative to the door frame. The feed port is latched with a feeding device. It is more convenient in opening the door plate by using the slidable turnover device; moreover, the feeding device is latched in the feed port by way of clamping, so that the feeding device is installed securely, and it is more convenient in access of the feeding device.