The invention belongs to the technical field of glass manufacturing equipment, and particularly relates to a glass piece loading device. The glass piece loading device comprises a loading mechanism, apositioning mechanism and a conveying mechanism used for conveying glass, the loading mechanism is located on the loading position of the conveying mechanism and used for grabbing and conveying the glass to the conveying mechanism, the positioning mechanism is mounted on the conveying mechanism and located on the discharging position of the conveying mechanism, the positioning mechanism is used for adjusting the glass position to enable the glass to right face a bending die in a toughening furnace, according to the glass piece loading device, the automatic piece loading operation of the toughening furnace is achieved, the piece loading efficiency is greatly improved, in addition, in the piece loading process, the positioning mechanism carries out positioning adjusting on the glass position, the moving position of the glass on the conveying mechanism is corrected, the glass can accurately enter in the bending die in the toughening furnace, it is ensured that after subsequent glass bending, a good shape is achieved, the glass pass percent and the glass yield are improved, and the glass manufacturing cost is reduced.