The invention belongs to the field of food and beverage, in particular to a preparation method for a beverage nourishing the stomach and keeping health. The main raw materials of the beverage comprises tuckahoe, bighead atractylodes rhizome, liquorice, Chinese yam, lotus seed, red dates and milk. The beverage can be obtained by mixing, soaking with water, refluxing, filtering, clarifying, concentrating, grounding, homogenizing and sterilizing the raw materials sequentially. As the beverage uses tuckahoe, bighead atractylodes rhizome, liquorice, and Chinese yam as the raw materials, the beverage has good efficacy on a digestive system and spleen-stomach. The prepared beverage is the best health care product which treats weakness of the spleen and stomach, poor appetite and hypopepsia.