The invention discloses a multi-mode resonator based dual-mode balun bandpass filter, which comprises an input end feeder, a two-port output end feeder, a three-port output end feeder, a first multi-mode resonator, a second multi-mode resonator, a dielectric substrate and a metal grounding plate, wherein both the first multi-mode resonator and the second multi-mode resonator are symmetry plane branch loading multi-mode resonators; the input end feeder, the two-port output end feeder, the three-port output end feeder, the first multi-mode resonator and the second multi-mode resonator are located at the upper surface of the dielectric substrate, and the metal grounding plate is located at the lower surface of the dielectric substrate; the first multi-mode resonator comprises two quarter-wavelength resonators and two symmetry plane branch loading units, and the second multi-mode resonators comprises two quarter-wavelength resonators and two symmetry plane branch loading units. The balun bandpass filter disclosed by the invention is simple in structure, low in loss and good in selectivity, and has excellent port matching properties, thereby being extremely applicable to a modern wireless communication system.