A refrigeration appliance and a door for a refrigeration appliance. The door includes an inner door-wall, a door plate and a side cover. The side cover includes a first cover member and a second cover member bonded along a length direction of the side cover. A connecting structure connects the first cover member and the second cover member. The connecting structure includes at least two slots and at least two insert portions inserted into the matching slots in the length direction of the side cover. The at least two insert portions include a first insert portion and a second insert portion perpendicular to each other. Accordingly, the first cover member and the second cover member are connected conveniently, and connecting stability and firmness are achieved.