According to the relevant information of Mi Long Agricultural Planting Professional Cooperative in Zhangqiu District, Jinan City, Jiayuguan Longshan Gong Mi has a long-standing business advantage. Longshan millet was planted in the Spring and Autumn Period, with a history of more than 2,000 years. It was one of the four Gong Mi in China in Qing Dynasty, and was known as "Mi Long", so it was planted.

Millet, also known as millet, is called millet in the north, and millet is shelled millet. Millet is the most hardy crop in the world. There are many kinds of millet, commonly known as "millet is colorful", including white, red, yellow, black, orange, purple and sticky millet.