Longfeng feed corn syrup dry powder is a by-product of starch production in the food industry or alcohol extraction in the brewing industry. It has rich protein nutrition, special taste and color, and can be used as feed. Compared with fish meal commonly used in the feed industry, dry corn steep meal has obvious resource advantages, high feeding value, does not contain toxic and harmful substances, does not require reprocessing, and can be directly used as a protein raw material. In recent years, some companies have used corn gluten meal as raw materials to extract zeaxanthin and zeaxanthin, and successfully developed functional foods. The added value is greatly increased.