A new band pass filter based on magnetic photonic crystals is proposed to meet the high performance filter requirements in microwave communication system.Simulations and experiments show the new filter has good shape factor,low insertion loss,high band rejection and flat pass band.A band pass filer working at 10.75 GHz was fabricated.Bandwidth of the filter is up to 1.3 GHz,insertion loss is less than 5 dB and band rejection is larger than 50 dB.The filter working at different frequencies and with different bandwidth could be realized by changing the radius and lattice constant of magnetic photonic crystals.