Oxygen supply device

The utility model discloses an oxygen supply device, which belongs to the technical field of deep sea aquaculture net cages and comprises oxygen supply equipment, a sealing box mounted on the lower surface of the oxygen supply equipment and first floating plates mounted on the left side and the right side of the oxygen supply equipment, and an air inlet pipe and a solar panel are mounted on the upper surface of the oxygen supply equipment in a communicated manner. The oxygen supply equipment is electrically connected with the solar panel, and a partition plate is mounted in the sealing box; according to the oxygen supply device, a second floating plate and a first electric push rod are arranged, power is supplied to the first electric push rod and oxygen supply equipment through a solar panel, the oxygen supply equipment is placed in a water area through the first floating plate, when the first electric push rod drives the second floating plate to move, the first floating plate is lengthened, and the second f