Spherical tetragonal barium titanate particles of the present invention
have a perovskite crystal structure, an average particle diameter of 0.05
to 0.5 .mu.m, a particle size distribution .sigma.g of not less than 0.70,
and a ratio of Ba to Ti of 0.99:1 to 1.01:1. The spherical tetragonal
barium titanate particles exhibit an excellent dispersibility as well as a
high denseness, a high purity and excellent permittivity properties.