The utility model discloses an access device and a yurt. The yurt comprises a body, the body comprises side walls and a bottom plate, the bottom plate is arranged in an overhead mode, and door openings are formed in the side walls. The access device comprises a door plate and an extension ladder, and the door plate is arranged on the side wall and used for opening or closing the door opening. The extension ladder is arranged on a bottom plate of the yurt corresponding to the door opening, and the extension ladder is configured to extend to connect the bottom plate with the ground when the door plate is opened, and retract to be stored on the bottom plate when the door plate is closed. According to the access device, the extension ladder and the door plate are linked, the extension ladder automatically extends to be used by a user when the door is opened, and the extension ladder automatically retracts after the door is closed, so that the operation complexity is effectively reduced, the access convenience of the yurt is greatly improved, compared with a traditional ladder, the extension ladder occupies a small space after being retracted, and meanwhile, the safety of the yurt is improved. And the extension ladder is automatically retracted after the door is closed, so that obstruction can be avoided, the wind area of the yurt is reduced, and the stability of the yurt is improved.