The present invention provides conductive powder with excellent conductivity and heat-conductivity, which is approximate monodisperse conductive powder composed of polyhedron-shaped particle and approximate flaky particle, the characteristics is that the average aspect ratio of the smaller particles of less 30% accumulation diameter is not less than 3, and is at least 1.3 times larger than the aspect ratio of the larger particles of more 30% accumulation diameter in whole particles, the approximate monodisperse conductive powder is made by means of implementing surface process to fatty acid which weight is not more than 0.5% of the conductive powder.