A sliding mode proportion resonance control method based on a three-phase Vienna rectifier is disclosed. The method is characterized by according to a Kirchhoff law and the topological structure of the three-phase Vienna rectifier, deducing a three-phase rectifier circuit equation; collecting the voltages Uc1 and Uc2 of the upper and lower capacitors of a direct current side, alternating current side currents ia, ib and ic and voltages Ua, Ub and Uc, adding the collected voltages Uc1 and Uc2 of the upper and lower capacitors of the direct current side and acquiring a total voltage Udc, using the difference value of the Udc and a direct current side voltage reference value Udcref to acquire a current reference value idref through a sliding mode controller, introducing into a formula: iqref=0, through 2s/2r conversion, acquiring i alpha and i beta, carrying out 3s/2r conversion on the alternating current side currents so as to acquire actual current values i alpharef and i betaref, then,subtracting the i alpharef and the i alpha, and the i betaref and the i beta, through proportion resonance control, acquiring usalpha and usbeta, and through the voltages Ua, Ub and Uc, acquiring theangle theta of a phase-locked loop; and introducing the usalpha, usbeta, a direct current side voltage udc, the alternating current side currents ia, ib and ic, and a middle point voltage signal intoa controller, and finally acquiring a Vienna rectifier switch on-off signal. In the invention, the robustness and the dynamic performance of the Vienna rectifier are increased, the reaction speed ofthe Vienna rectifier is increased too, a direct current side voltage fluctuation is reduced, simultaneously a good anti-load-disturbance capability is possessed.