The aim of this study is to prepare low loading electrical conductive polymer composites of polypropylene／graphite. The PP／graphite compounding powders were successfully prepared by pan-milling at ambient temperature．Their structure and properties were characterized by particle size analysis

SEM and XRD．The results showed that pan-milling realized pulverizing

dispersion and compounding of PP and graphite．Through 25 cycles pan-milling

PP and graphite powders imbedded each other and made into uniform PP／graphite compounding powders．PP／graphite powders were observed as strips through SEM. XDR spectra showed that pan-milling decreased crystallinity of PP from 56.16％ to 26.38％

and reduced crystallite dimension of PP and graphite

increased the interspaces of crystal face．The prepared PP／graphite compounding powders can be used for conductive composites．When graphite content is 10 wt％

the electrical conductivity of PP／YEP250 composites reaches 6.3×10-3 S·m-1

much higher than 7.1×10-16 S·m-1 of PP．Pan-milling is an effective way to prepare functional polymer based composites．