A cushioning apparatus includes an air cylinder sheet, a film, and one or more adhesive segment. The air cylinder sheet includes several nodes, and the air cylinder sheet is folded along the nodes to form a first cushioning portion, a second cushioning portion, and a third cushioning portion. The first cushioning portion is closely attached to the bottom of a box for packing an object. Two ends of the film are fixed at the second cushioning portion and the third cushioning portion, respectively. The length of the film is greater than a distance between the second cushioning portion and the third cushioning portion. The adhesive segment is disposed on the film to allow two regions of the film to adhere with each other or to allow the film to adhere to the second cushioning portion or the third cushioning portion.