Fixed buoy for ocean monitoring

The utility model discloses a fixed buoy for ocean monitoring, belongs to the field of ocean environment detection equipment, and solves the problems that in the prior art, a buoy is prone to overturning, and water seepage is prone to occurring after overturning, in the technology, an upper floating ball is in a spherical shape, and the upper floating ball comprises a hollow inner ball body and a hollow outer ball body; the inner ball body is arranged in the outer ball body; a lower balancing weight is arranged in the outer lower hemispherical shell; a plurality of external detection electrodes are arranged at the bottom of the external lower semispherical shell, penetrate through the bottom of the external lower semispherical shell and are sealed with the external lower semispherical shell; a plurality of second internal electrodes are arranged at the bottom of the internal sphere, one end of each second internal electrode is arranged in the internal sphere, and the other end of each second internal electrod