Impeller of compressor

The present invention provides a compressor wheel, comprising a turntable and forming a plurality of blades mounted on the turntable, the blades radially outwardly and away from the disk center along the surface of the turntable, the turntable is connected with the root of the blade round-shaped structure, the blade leading edge portion of the turntable is formed at the rounded shape of radius Rh, the blade trailing edge of the turntable is formed at the rounded shape of an Rf radius, the value of the Rh less than stress concentration points, so that the actual aerodynamic performance of the impeller close to the ideal design value, but also significantly reduce root stress concentration, improve the life of the impeller, but also a corresponding reducing the impeller material requirements, improve the economy of the impeller.