The invention provides a four-vortex-chamber three-outlet self-balancing multistage pump which comprises a suction stage, a discharge stage and a secondary suction stage, wherein the suction stage, the discharge stage and the secondary suction stage are arranged on a pump case; the suction stage and the secondary suction stage are symmetrically arranged on the two sides of the discharge stage; a suction stage inlet with a first preset angle is formed in the suction stage, and a secondary suction stage inlet with a second preset angle is formed in the secondary suction stage; a high-pressure outlet and two low-pressure outlets are formed in the discharge stage; a guide vane is arranged between the suction stage and the discharge stage, a return guide vane is arranged between the secondary suction stage and the discharge stage, and the guide vane and the return guide vane are symmetrically arranged on the two sides of the discharge stage; a center shaft is arranged at the center part ofthe pump case in the axial direction; and the guide vane and the return guide vane are arranged on the pump case in a sleeved mode. The four-vortex-chamber three-outlet self-balancing multistage pumpavoids the axial movement during starting and the axial pulsation during running of pump rotor parts, and effectively improves reliability.