The invention discloses a high-performance variable vane pump, which includes a housing, a rotor and blades. The housing covers outside the rotor, the housing is hemispherical, the end face of the housing extends inwards to be provided with a circle of circular rings K1, the circular rings K1 pass through the sphere center of the housing; positioning grooves are provided with the blades, the rotoris provided with sliding grooves corresponding to the positioning grooves one to one, and the blades on the positioning grooves are further slidably arranged on the sliding grooves and sealed throughsealing parts; the outer end tips of the blades are installed on sliding shoes, the sliding shoes abut against the side faces of the circular rings K1, an accommodating cavity is formed among every two adjacent blades, the surface of a ring groove, the inner wall of the housing and the side walls of the circular rings K1, the rotor is provided with oil ports with the same number as the accommodating cavities, each oil port communicates with the corresponding accommodating cavity, and both ends of the rotor are connected with oil distribution blocks correspondingly; and the outer wall of the housing is provided with a convex circular ring J1, the convex circular ring J1 is placed in a guide groove of a guide block, and the axis of the rotor do not coincide with that of the housing. According to the high-performance variable vane pump, the relative linear velocity between the blades and the housing is zero, and running at the extremely high speed can be achieved.