PURPOSE: To easily obtain spherical silica particles without coarse particles in a high yield, by crushing specified coarse particles with a crusher of resin balls or metal balls coated with resin.

CONSTITUTION: At first, the coarse particles obtd. by fusing among particles produced when silicic fine spherical particles are calcined at ≥800°C or thermal- sprayed at ≥1700°C, are prepd. Then, the coarse particles produced by partially fusing are selectively crushed with a crusher of resin balls or metal balls coated with resin to obtain the aimed spherical silica. As the silicic fine spherical particles to be used, the particles produced from raw material such as sodium silicate, tetraalkoxysilane, or produced by crushing natural silica, are exemplified.