Static compression experiments were carried on the air-bags with different material thicknesses, different initial air pressure, and different structure sizes to measure the loading-deformation characteristics. The factors influencing loading and cushioning characteristics were analyzed. The result showed that air-bags' bearing capacity increases with the film's thickness, gas pressure and gas cell's size increase; bearing capacity of multiple gas column is approximate linear relation with that of single gas column; air filled bag has good cushioning feature and cushioning coefficient is basically not influenced by the factors.