The size of Ba-ferrite particles was decreased from $0.7{mu}m;to;0.5{mu}m$ by ball-milling according to SEM observation. The surface of Ba-ferrite particles was treated with stearic acid in order to improve dispersion stability in the polymer matrix. PP composites containing the surface treated Ba-ferrite particle as a magnetic particulate filler were prepared in the form of pellet from PP resin and Ba-ferrite powder by a melt compounding using a single extruder. PP/Ba-ferrite composite fabrics by a melt-blown spinning system were prepared. The relationship between the properties of PP/Ba-ferrite composite fabrics and melt-blown processing factors was investigated with these specimens. A fiber diameter and tensile strength were decreased as die to collector distance increased or as screw turning force decreased. The crystallinity was decreased with increasing Ba-ferrite content according to XRD. It was assumed that the orientation of crystalline domain in the neat PP without Ba-ferrite was increased by drawing in mechanical direction, however, the orientation in the PP composite was decreased according to XRD analysis. A coercive force, maximum magnetization and residual magnetization were increased with the screw turning force. According to the result of TGA measurement, the heat resistance was increased with the Ba-ferrite content and decreasing the die to collector distance.