Silicon carbide-based fine particles containing an electrically conducting
inorganic substance and a electromagnetic wave absorbing material, which
are fine particles comprising a particle inner portion of a silicon
carbide-based material and a surface layer formed of an electrically
conducting inorganic substance mainly comprising carbon, wherein a
gradient layer with the compositional ratio of the electrically
conducting inorganic substance gradiently increasing toward the particle
surface is present and the thickness of the electrically conducting
inorganic substance gradient layer is from 1 to 500 nm. The
electromagnetic wave absorbing material of the present invention can
selectively absorb a electromagnetic wave of 1 to 300 GHz in a wide band.