HPMCP is a kind of enteric solubility film coating material with good properties. It mainly is used as the enteric solubility coating material and slow release framework material of tablet, pelletized granule, etc. It is used for making the bond as well as the microcyst matrix, embedding agent, the gradient releases the medicine system, the microballoons, the oral cavity capsule, the solid disperser and so on; moreover it is also widely applied in the aspects of livestock breeding, industry, biological technology, etc.