The designing model of magneto-static surface wave (MSSW) band-pass filter was established according to the MSSW fundamental theory. Based on the model and putting emphasis on center frequency and bandwidth control, the filter was devised, made and tested with the view of practical MSSW filter. The performance of the filter manufactured is in accordance with the theoretical designing with center frequency from 4.2GHz～5.2GHz, bandwidth 180MHz 6MHz at level-3dB, insertion loss 11dB and suppression of side bands more than 30dB, Thus, the practical MSSW filter prototype has been obtained. By raising the center frequency further, the technique will have broad prospect in the millimeter bands.