Chromium oxide green in the form of donut-shaped, ring-shaped or tire-shaped particles having an internal diameter of from 0.01 to 0.5 mm and an external diameter of from 0.05 to 1.0 mm is prepared by spraying an aqueous chromium oxide green suspension through a liquid pressure nozzle into a spray dryer such that the suspension entering the drying space of the spray dryer is rotating. Product name purity water soluble residue on 325 mesh moisture heat stability chrome oxide green xy-01 99.0% 0.40% 0.30% 0.30% chrome oxide green xy-02 99.0% 0.40% 0.30% 0.20% 1200 usage: used in the chrome smelt and chromium carbide, the dyeing agent of porcelain enamel and ceramic, leatheroid, structure made of ... , sunlight fast coating, abradant, green polish paste, ink, catalyst.