The present invention relates to the technical field of lighting, in particular to an LED lamp and a preparation method thereof. The LED lamp comprises an LED light-emitting body and a lamp shade covering the LED chip. The raw material of the lamp shade contains a blue light absorber comprising a rare earth oxide with a particle size range of 5–60 nm. An environmental purification functional layer is arranged on the surface of the lamp shade, and the environmental purification functional layer contains a titanium dioxide photocatalyst doped with rare earth elements and boron elements. The LED lamp of the present invention not only reduces the harm of blue light to human eyes, but also achieves environmental purification during use, reducing the harm of toxic gases to the human body.

Country Code: CN

Application Number: CN201610573871.1