It is a common occurence that typhoons strike frequently the southwest zone of Japan (Kyusyu, Shikoku) from August to September everyyear, since this period is the same as earing stage of the paddy rice in that zone, injuries of rice by typhoon are heavy.The wind injury of the paddy ricce is not only largely influenced by the wind velocity, its blowing duration, growing condition of rice, but also influenced by the temperature and the humidity of the wind.In order to research the difference of injury between wind-only treatment (10m/s, 3hr.) and wind and rain treatment (rain by shower in addition to wind), we carried out the experiment in the wind-tunnel at earing stage of the paddy rice.The results are following.1) The injury of wind only treatment was heavier than that of wind and rain treatment, that is, the former showed larger increase in sterile spikelets, spikelets of fertility injuries than the latter.2) The transpiration rate of rice by wind treatment showed remakable increase compared to that by non treatment, but that by wind and rain treatment was lower.