Offshore floating infrastructure for exploiting wind energy, comprising: - an elongated floating element adapted to rotate around and move along its own axis in a substantially vertical direction with respect to a liquid mass wherein said elongated floating element is immersed and floats; - a tower arranged on and coaxial with said floating element; - a first power generator operatively connected to said tower, said first power generator being rotating around the axis of said floating element being pushed by the wind force; - a wind rotor assembled on said first power generator; and - a second power generator operatively connected to said floating element, said second power generator being rotating around the axis of said floating element being pushed by the wind force, said second power generator being equipped with at least one oscillating arm interacting with a system of ropes, said system of ropes adapted to connect said second power generator to at least one power kite; - at least one rotation enabling element placed around said floating element and immersed in the liquid, said at least one rotation enabling element comprising means adapted to allow a possible rotation of said floating element around its own axis, said rotation enabling element comprising a rotary ring and a series of wheels equipped with rubber tires, said wheels rolling in a groove and said rope being directly connected to said rotation enabling element through said junction point, said junction point belonging to said rotation enabling element to allow balancing the overturning moment induced by the wind force of said wind rotor with the stabilizing moment induced by the wind force of said at least one kite, said rope being approximately aligned with said system of ropes. characterized in that said first power generator and said second power generator integrally lie on a wing equipped with a keel, adapted to be partly submersed in the liquid and overlapping said floating element, said keel being adapted to reduce the drift of the submersed part with respect to the wind direction. - an elongated floating element adapted to rotate around and move along its own axis in a substantially vertical direction with respect to a liquid mass wherein said elongated floating element is immersed and floats; - a tower arranged on and coaxial with said floating element; - a first power generator operatively connected to said tower, said first power generator being rotating around the axis of said floating element being pushed by the wind force; - a wind rotor assembled on said first power generator; and - a second power generator operatively connected to said floating element, said second power generator being rotating around the axis of said floating element being pushed by the wind force, said second power generator being equipped with at least one oscillating arm interacting with a system of ropes, said system of ropes adapted to connect said second power generator to at least one power kite; - at least one rotation enabling element placed around said floating element and immersed in the liquid, said at least one rotation enabling element comprising means adapted to allow a possible rotation of said floating element around its own axis, said rotation enabling element comprising a rotary ring and a series of wheels equipped with rubber tires, said wheels rolling in a groove and said rope being directly connected to said rotation enabling element through said junction point, said junction point belonging to said rotation enabling element to allow balancing the overturning moment induced by the wind force of said wind rotor with the stabilizing moment induced by the wind force of said at least one kite, said rope being approximately aligned with said system of ropes.