Abstract: The present invention provides a high-stability deep-sea buoy platform including a mast tube housing an attitude sensor used to monitor the tilt angle of the deep-sea buoy platform; a plurality of buoyancy tubes symmetrically and equally spaced around the mast tube; the buoyancy tube includes an elastic float and a water tank; the cross-section of the elastic float is ring-shaped; the elastic float being fitted around the outer side of the upper part of the water tank; the water tank is cylindrical and the interior of the water tank is divided into an upper layer and a lower layer, and the lower layer containing ballast water; each water tank is connected to the other water tanks via pipelines, each of the pipelines equipped with a flow valve; and a damping plate is horizontally connected between the bottoms of adjacent water tanks.