Abstract: An antagonistic actinomycete named 111A202 was isolated from the cotton field in Xinjiang Xinjiang Uygur Autonomous Region. Its morphology, physiological and biochemical properties, cellwall pattern were characterized. The 16S rRNA gene of strain 111A202 was sequenced and analyzed for similarities to related bacterial species. Results showed that strain 111A202 is a member of the Genus Streptomyces, and the strain was named (S. albidoflavus 111A202).