Closed-cell cushioning material, as expanded polyethylene, is usually shaped into cushioning structure by the processing method of cutting and adhesion. The damage to bubble by cutting would affect the cushioning properties of the material. Furthermore, the damage would affect the cushioning structure properties. A series of experiments are designed to analyze the influence of two different bubble damage ways (cutting damage type, piercing damage type) on the material cushioning properties, and contrasted with the cushioning properties curve result from classical experiment method. The results show that scale effect obviously exists in the material’s rigidity in the cutting damage type. The two kinds of bubble damage ways have influence on the cushioning properties of the expanded polyethylene. With the increase of cutting frequency, the four schemes demonstrate big differences in areas and volumes. The data of a and b schemes are similar, the data of c and d are significantly increased than other schemes.