The utility model discloses a glue feeding device, which comprises a raw material drum, a filter drum, a recovering drum and at least two bubble removing drums. A vacuum air port, a compressed air port and a glue feed inlet are arranged at the upper end of each bubble removing drum, a glue discharge outlet is arranged at the lower end of the each bubble removing drum, the vacuum air port is communicated with a vacuumizing system, the compressed air portion is communicated with a compressed air system, the glue feed inlet is communicated with the filter drum, the glue discharge outlet is communicated with a glue feeding mechanism, guide tubes are arranged in the bubble removing drums, and one ends of the guide tubes are connected to the glue feed inlet while the other ends of the guide tubes extend to the bottoms of the bubble removing drums. Liquid particles in protective glue flowing into the bubble removing drums from the guide tubes can be separated as far as possible, bubbles surrounded by the glue particles can be further eliminated when the protective glue is sucked into the bubble removing drum and pressed out of the bubble removing drum under the action of vacuum, so that excellent bubble removing effect is realized. Further, more than two bubble removing drums work alternatively, so that storage quantity of the protective glue is increased, and requirements of blue-ray disc production are met.