The invention relates to a key brightness correction method and device. The method comprises the steps of acquiring brightness of a key to be corrected; judging whether the brightness of the key to be corrected is within a preset range or not; and adjusting a driving parameter of the key to be corrected if the brightness of the key to be corrected is not within the preset range so that the brightness of the key to be corrected is adjusted within the preset range. By the method, the purpose of correcting the key brightness can be achieved, the consistency of the key brightness can be ensured when intelligent equipment is used by a user, and the lighting consistency of different intelligent equipment can also be ensured during mass production.