Dangshen is the monarch drug in the prescription, which is warm in nature, invigorating qi, strengthening spleen and regulating stomach; I use atractylodes macrocephala to strengthen the spleen and dry dampness, and enhance the function of benefiting qi and helping transport; Sweet poria cocos, spleen and dampness, combined with Lingshu, spleen and dampness; So that the roasted licorice can benefit qi, harmonize middle energizer and harmonize various medicines. The combination of the four drugs * * * plays the role of benefiting qi and strengthening the spleen.