Self residue removing servo vane pump

The invention relates to the technical field of oil conveying, in particular to a self residue removing servo vane pump. The self residue removing servo vane pump comprises a pump shell. An oil pumping cavity internally provided with a stator is formed in the pump shell, and a rotor driven by a high-speed motor is arranged in the oil pumping cavity and provided with transmission grooves. Blades are connected in the transmission grooves in a sliding manner. A connecting inner screw hole is formed in the lower end of the pump shell. A residue outlet communicating with the connecting inner screw hole is formed in the position, corresponding to the connecting inner screw hole, of the lower end of the stator. According to the self residue removing servo vane pump, an oil drainage runner connecting the residue outlet in the bottom of the stator and an upper oil outlet in the top face in an oil outlet pipe is formed in the pump shell, and therefore low-level metal broken residues in the pump shell can enter a U-shap