Abstract: This study investigates the effects of Cu content and the application of a pulsed magnetic field on the solidification structure, mechanical properties, corrosion resistance, and antibacterial properties of Zn-xCu (x=1, 3, 5) alloys with Cu mass fractions of 1%, 3%, and 5%, respectively. The alloys were characterized using optical microscope, scanning electron microscope, X-ray diffraction, universal tensile testing machine, electrochemical measurements and bacterial test. The results indicate that increasing the Cu content leads to gradual grain refinement and an increase in tensile strength, but a decrease in both elongation and corrosion resistance. Specifically, compared with Zn-1Cu alloy, the tensile strength of Zn-5Cu alloy has increased by 208%, but the elongation has decreased by 46%. The application of a pulsed magnetic field further refined the grain structure and promoted a more uniform distribution of the second phase. This treatment also reduced the self-corrosion current density, significantly enhancing corrosion resistance, while maintaining an antibacterial rate greater than 99.9% for all alloys. Compared with the Zn-Cu alloy of the same composition without magnetic field treatment, the tensile strength of the Zn-Cu alloy treated by pulsed magnetic field increased by 33.7%, 25.7% and 10%, and improvements in elongation of 4.9%, 7.5% and 18.2%, respectively.