2- deoxy -D- ribose is the basic raw material and key intermediate of nucleoside drugs. At present, it is mainly used in the manufacture of antiviral drugs and anti-tumor drugs, such as Qi duoding, lamivudine, and doddudine. It is widely used in the treatment of AIDS, hepatitis B and cancer, and has important development value and market prospect. It is an important intermediate for the synthesis and production of nucleoside products.