The invention discloses a method for achieving a white-light LED through employing MAlSiO4: Tb3+, Eu2+ yellow-light fluorescent powder, and the method comprises the following steps: 1), weighing MAlSiO4: Tb3+, Eu2+ yellow-light fluorescent powder and adding the MAlSiO4: Tb3+, Eu2+ yellow-light fluorescent powder to mixed packaging glue, wherein the weight of the fluorescent powder is 10-60% of the total weight of the mixed packaging glue; 3), enabling the mixed packaging glue after uniform stirring of the mixture obtained at step 1) to be dripped into an LED support cup housing equipped with a blue-light chip; 4), carrying out the solidifying of the packaging glue, and obtaining a white-light LED lamp bead. The fluorescent powder employed in the method is high in excitation efficiency, is uniform in particle size, can be mixed with the packaging glue, and facilitates the later dispensing operation. Moreover, the fluorescent powder is better in color zone consistency, and can improve the color zone consistency of the LED lamp bead in batch production.