To provide a plastic composite material which has conductivity and has improved characteristics suited for intercepting electromagnetic radiation or electromagnetic wave.

The plastic composite material comprises a polymer matrix made by accumulating nano-fiber material and/or accumulating graphite-based particles, wherein the matrix contains at least one kind of inorganic filler in the form of silicate based particle or in the form of glass particles. The inorganic filler comprises at least partially silicate based particle and/or glass particles.