The invention discloses a Chinese herbal medicine for coordinating the intestines and stomach of a cad pig and stimulating appetite, which is mainly composed of the following components in parts by weight: 30-50 parts of cassia bark, 20-40 parts of cumin, 20-40 parts of fleece-flower root, 20-40 parts of asket fern, 3-6 parts of pepper, 8-12 parts of notopterygium root, 20-30 parts of pericarpium citri reticulatae, 30-50 parts of gelsemium, 25-40 parts of radix astragali, 20-30 parts of folium artemisiae argyi, 180-220 parts of medicated leaven, 20-30 parts of malt, 18-22 parts of radix geutianae and 3-8 parts of licorice. The invention also discloses a preparation method of the Chinese herbal medicine, which is implemented by softening prepared powder by steaming in a steaming oven of a steamer for 1-3 hours, thereby obtaining the product. The Chinese herbal medicine has the effects of expelling and inhibiting insects, dredging the intestines, relieving dyspepsia, reinforcing the spleen to promote digestion, removing heat and dampness and activating blood circulation to dissipate blood stasis. After being eaten by a cad pig, the Chinese herbal medicine has the functions of dredging the blood vessels, reinforcing spleen to promote digestion and stimulating appetite.