Provided in the present invention are a packaging structure and a packaging method for an OLED device, wherein an organic layer is arranged between a first organic reinforcing layer and a second organic reinforcing layer, so as to improve the water-oxygen barrier property of the OLED device; and the first organic reinforcing layer and the second organic reinforcing layer both comprise an organic fluoride which is chemically bonded with silicon dioxide, such that the organic-inorganic interface bonding property is superior to simple physical stacking, thereby improving the service life of the OLED device.