To provide conductive powder capable of moderating a percolation phenomenon particular to carbon black in adding rubber, resin or the like and provide a conductive composition filled with it and its manufacturing method.

This conductive powder is characterized in that it contains carbon powder and SiOx (0.5<x<1.5) and the percentage content of the SiOx is 1-50 mass%. This manufacturing method therefor, this conductive composition of rubber and/or resin filled with the conductive powder, a conductive conditioning material of carbon powder comprising powder of SiOx (0.5<x<1.5) are provided as well.