Floating wind turbine structure comprising a socket provided with one or more anchorings to the seabed to support one or more wind turbines connected to a driving motor or power generator. The wind turbine is arranged upon a substantially triangular floater device consisting of hollow pipes extending downwards into the sea at a mutual angle and increasing mutual distance in direction downwards. A hollow arc-shaped underpart/cross piece is arranged at the lower end of the floater device pipes. A strutting piece is arranged at the upper part of the floater device. The cross piece is partially filled by liquid and its internal is provided with a flow restricting plate which decelerates liquid flow from one end to the other of the cross piece during increasing and decreasing heeling.