The invention relates to a continuous oxygen supply device for an oxy-fuel glass furnace, which is characterized in that: the continuous oxygen supply device comprises a set of auxiliary oxygen supply pipeline which orderly consists of a liquid oxygen storage tank (001), a liquid oxygen delivery pipe (003), an electric control valve (004), a liquid oxygen booster pump (005) and a carburettor (007). The auxiliary oxygen supply pipeline is connected with a main pipe (011), and the inside of the main pipe (011) is provided with a pressure transmitter P and a differential pressure transmitter FI.The pressure transmitter and the differential pressure transmitter transmit pressure and flow rate parameters to an oxygen supply controlling device which respectively controls the on or off of the electric control valve (004) and the liquid oxygen booster pump (005). An uninterrupted power drive source provides power for the liquid oxygen booster pump (005). The continuous oxygen supply device has the advantages that: the continuous oxygen supply device can supply oxygen to the oxy-fuel glass furnace automatically and continuously when an on-site oxygen-making device goes wrong or is in power failure, and manual opening of valves and the liquid oxygen booster pump is never needed so as to save time; and in particular the possible detonation due to oxygen interruption of an oxy-fuel glassfurnace taking natural gas as a fuel can be avoided.