Method for manufacturing white light LED light sources

The invention discloses a method for manufacturing white light LED light sources. The white light LED light sources are made of LED chips and a fluorescent piece. The method for manufacturing the white light LED light sources comprises the following steps of dividing the LED chips into a plurality of grades according to the wave length of the LED chips, cutting the fluorescent piece into a plurality of fluorescent piece subunits, using the LED chips of all the grades as excitation light sources respectively, carrying out photochromic performance tests on the fluorescent piece subunits, selecting the fluorescent piece subunits matched with the LED chips of all the grades, and packaging mutually matched LED chips and the fluorescent piece subunits to form the white light LED light sources. The method for manufacturing the white light LED light sources can ensure the matching between the fluorescent piece subunits and the LED chips, and guarantees the uniformity of light emitted by the white light LED light sources, therefore, the qualified rate of products is improved, and production cost is reduced.