The invention discloses a Chinese medicine composite for treating chronic gastritis and a preparation method thereof. The Chinese medicine composite mainly comprises the following active pharmaceutical ingredients: medicated leaven, fructus hordei germinatus, radish seed, pericarpium citri reticulatae, rhizoma cyperi, rhizoma dioscoreae, fructus aurantii immaturus, jobstears seed, lignum dalbergiae odoriferae, grassleaf sweetflag rhizome, cortex magnoliae officinalis, styrax, tuckahoe, fructus amomi, radix et rhizoma rhei, semen pruni, radix trichosanthis, rhizoma coptidis, honeysuckle flower, dandelion, radix scrophulariae, largehead atractylodes rhizome, radix paeoniae alba, medicated leaven, radix angelicae sinensis and rhizoma corydalis, and the like. The Chinese medicine composite can be prepared to be any common oral preparation according to the conventional Chinese medicine preparation method. The Chinese medicine composite can obviously improve gas pain in the gastric cavity, decreased food appetite, fullness after dinner, sour regurgitation, stuffiness in chest and abdomen, heartburn, feverish dysphoria, gastric upset, fatigue, dry pharynx, stomach ache due to too hungry and full, infantile atrophy and the like, which has definite clinical effect, obvious curative effect and fast desired effect. The Chinese medicine composite also has the advantages of low cost, basically no toxic side effect and the like.