Abstract: In order to adapt to a wide range of output voltage applications, a new three-phase Zeta rectifier with non-electrolytic capacitor was proposed. The proposed rectifier integrateed a three-phase current-source PWM rectifier with a Zeta converter and multiplexes the power device, thus inheriting the advantages of the current-source PWM rectifier and the Zeta converter. The proposed rectifier can achieve single-stage buck-Boost, with no short circuit protection, no electrolytic capacitors and large energy storage inductors,which is of high power density and reliability, and long service life. The topology structure of the proposed rectifier was introduced and its basic working principle was analyzed. The steady-state mathematical model was deduced, the steady-state voltage gain was obtained. Finally, simulations and experiments were performed. Simulation and experiment results verified the correctness of the theoretical analysis.