The production process features that dried and crushed flavescent sophora root is processed through extraction, concentration, alkalization, reduction, solvent extraction, acid reverse extraction, deposition and separation to produce coarse matrine product and coarse sophoridine product; coarse matrine product and coarse sophoridine product are recrystallized and dried to obtain matrine product and sophoridine product; and matrine is further processed through oxidation with hydrogen peroxide, decompression distillation, crystallization, filtering, re-crystallization and drying to obtain oxymatrine product. The said three products are material for producing medicine for treating hepatitis B, hepatitis C, leucopenia, arrhythmia, cancer and other diseases.The production process of the present invention is simple, low in cost, high in product purity and suitable for industrial production.