Adopting the photosensitive polymers + phosphor for LED conformal coating to realize the white LED phosphor coating planarization process, this technology enables the device to give off bright light and more self color space than the traditional packaging process, and spot color between single tube and the deviation of brightness is less than 6%. Integrating photosensitive of PVA and physical chemistry performance of silicone and adopting emulsion technology in slip method process, the phosphor surface coating of PVA and silicone is realized, which is help to improve phosphor layer′s physicochemical properties. The improvement of effective refractive index of multiple phase coating is more helpful to improve the whole luminous efficiency of device. Because the range of photopolymer′s sensitive wavelength is very wide, besides the technology of adding to photosensitive, so that its photosensitive wavelength range is match to LEDs emitting wavelength, so white LED conversed by variety of phosphor can achieve planar coating technique. Because the majority of photopolymers are easy to absorb UV light, the traditional casting technology of UV+ threecolor phosphor will be greatly improved.