A novel encapsulation method is developed,in which the getter and the breathable insulating polydimethylsiloxane (PDMS) film are encapsulated in the device using flexibl e metal film and UV resin.The water vapor transmission rate (WVTR) of encapsulated structures is m easured by the method of calcium electrical test,and the water and oxygen barrie r performance of this method is studied.The experimental results show that the d eposition temperature of Ca film greatly affects the uniformity and surface morp hology of Ca film,thus affecting the testing results of WVTR.The flexible metal encapsulation method proposed in this paper has good water and oxygen barrier properties,and its WVTR is less than 5×10 －4 g/m²/day after 90h of encapsulation.The water vapor was found to mainly penetrate from the UV resin around the device,which is very different from the water vapor permeation mechanism of the traditional thin fil m encapsulation.