Truss type supporting foundation of tidal current energy water turbine

The truss type supporting foundation of the tidal current energy water turbine comprises a truss type structure and a supporting connecting piece, the supporting connecting piece is installed on the outer side of the truss type structure, a pile foundation is arranged at the bottom of the truss type structure, the pile foundation penetrates into a seabed, and the top of the truss type structure isarranged under the sea surface. The supporting connecting piece comprises a supporting piece, a lateral supporting arm, a supporting ring and a connecting base; wherein one end of the lateral supporting arm is connected to the outer side of the truss type structure, the other end of the lateral supporting arm is connected to the supporting ring, the supporting ring is provided with a slideway structure, the base annularly slides to a certain position along the slideway structure and then is fixed, the tidal current energy water turbine is connected to the base, and the supporting piece supports the lateral supporting