By the Kizia typhoon visited on Sept. 13. 1950, the late rice plants just in the earing date were most seriously damaged.The results investigated to know the damages done by this typhoon on rice grains are summarized as follows:—1. Small brown discolored spots appeared on the surface of rice grains especially in late rice plants just in the earing date.2. These damaged grains contained more green (unriped) and incomplete kernels but less complete, and into the bargain some brown kernels. But no deformed kernels were observed, 3. Weight of 1, 000 kernels of damaged grains decreased about 5%.4. These damages to grains were a little seriously observed in the glutinous rice than in the nonglutinous.