Anionic polyacrylamide series products are water-soluble linear polymer synthesized with high degree of polymerization. They are easily soluble in water and almost insoluble in common organic solvents such as benzene, ether, lipids and acetone. It has valuable properties such as flocculant, thickener, shear, resistance reduction and dispersibility. Therefore, it is widely used in oil recovery, mineral processing, coal washing, metallurgy, chemical, paper, textile, sugar, medicine, environmental protection, building materials, agriculture and other industries.