A light platform apparatus is provided for installing a light device. The light platform apparatus includes an installation plate and a guiding unit. The installation plate has a light device area on an inner side of the installation plate for mounting the light device. The installation plate has a light escape corresponding to a light opening of the light device. A light output from the light opening of the light device passes through the light escape to an outer side of the installation plate main body. The guiding unit is corresponding to a fixing unit. The fixing unit is extended from the bottom edge of the driver box outwardly. The guiding unit provides a sliding path for the fixing unit to slide in and then keeps the fixing unit fixed to the guiding unit for fixing the driver box to the installation plate.