Abstract: Bacterial blight (BB) is one of the most serious diseases of rice (Oryza sativa),curbing the product of rice-planting zone. As the development of molecular marker technology, it becomes one of the most significant methods to investigate the disease at the molecular level. In this paper, we introduced and compared the common molecular markers developed in recent years. The application and prospects of this technology on genetic mapping and cloning of rice BB resistance genes, as well as molecular assisted breeding, were also reviewed here．

Key words: molecular marker, rice, bacterial blight, resistance gene