The invention relates to a traditional Chinese medicinal composition with stomach-invigorating and digestion-promoting function. The traditional Chinese medicinal composition comprises the following ingredients in part by weight: 10 to 30 parts of Chinese angelica, 10 to 20 parts of largehead atractylodes rhizome, 8 to 10 parts of green tangerine peel, 3 to 10 parts of tangerine peel, 3 to 10 parts of thick skin, 10 to 20 parts of cinnamon and 5 to 10 parts of Indian buead. A preparation method of the traditional Chinese medicinal composition comprises the following steps of: (1) weighing the Chinese angelica, the largehead atractylodes rhizome, the green tangerine peel, the tangerine peel, the thick skin, the cinnamon and the Indian buead according to the weight ratio respectively, grinding the ingredients respectively, and sieving the ingredients by using a 60-mesh sieve respectively; and (2) placing the sieved Indian buead, largehead atractylodes rhizome, green tangerine peel, tangerine peel, thick skin, cinnamon and Indian buead into a mixing machine to mix completely and uniformly to obtain the finished product, namely the traditional Chinese medicinal composition with the stomach-invigorating and digestion-promoting function. The traditional Chinese medicinal composition with the stomach-invigorating and digestion-promoting function has the effects of warming middle-Jiao and invigorating spleen, invigorating stomach and promoting digestion, smoothing bowels and qi, and improving immunity of the organism, is convenient to use, and has no toxic or side effect, no medicinal residues, low cost and no medicament resistance.