As new high-tech products, processed from corn cobs through multiple processes, corn cob particles have developed in China in recent years. It is mainly composed of protein and cellulose and widely used in medicine, feed, chemical and so on. As a substitute for veterinary drug carriers, it is favored by pharmaceutical manufacturers and feed industry as well as farmers because of low cost, good absorption effect, long shelf life, good palatability and no side effects. Corn cob particle powder carriers can be produced by a few countries, such as the United States and France, whose products are sold all over the world. After China’s access to the WTO, in order to be in line with the international standards, corncob particle powder must be used by major domestic pharmaceutical companies instead of Carrier bean cake powder. The corncob particles developed and produced by the company catered to the needs of domestic and foreign markets, filling in a gap of countries.