The invention discloses a micro-strip double-pass-band filter which is respectively applied to a broad-band system and a narrow-band system. The double-pass-band filter is formed on a dielectric substrate and comprises a first resonator, a second resonator, a third resonator, a fourth resonator, a first feeder line, a second feeder line, a first short circuit branch and a second short circuit branch. A three-order interdigital filter is formed by the first feeder line, the second feeder line, the first resonator, the second resonator and the third resonator and a broad-band pass band is generated. A dual-mode filter is formed by the first feeder line, the second feeder line, the first resonator, the third resonator and the fourth resonator and a narrow-band pass band is generated. Parameters of the two pass bands of the double-pass-band filter can be independently adjusted, the pass bands are high in frequency selectivity and isolation, the circuit structure is simple, and performance is good.