Abstract: The research progress of canopy temperature in screening of rice genotypes with resistance to drought was reviewed in this article. The method of measuring canopy temperature by using the infrared thermometry was introduced. Because sufficient variations in canopy temperature exist among genotypes and the correlation between canopy temperature and plant water application must exist in theory, the application of canopy temperature in screening of rice genotypes with resistance to drought is valuable and feasible in practice. The method of measuring canopy temperature by using the infrared thermo metry is an indirect monitoring technique of plant temperature, which provides a method for easy, rapid and nondestructive field screening of rice drought_resistance genotypes.