The invention discloses a medicinal preparation for treating deficiency cold of spleen and stomach type peptic ulcer and a preparation method thereof. The medicinal preparation comprises the following crude drugs: brassica oleracea, lepisorus waltonii, rhizoma zingiberis, hyoscyamus, cortex cinnamomi, clarified butter, fructus foeniculi, fructus ulmi macrocarpae, syzygium aromaticum, pepper, schisandra propinqua, fructus piperis longi, dried tangerine or orange peel, notopterygium root, radix aucklandiae, cayratia japonica, santalum album, semen litchi, potentilla chinensis, prunus mume, allium macrostemon, cucurbita moschata duch, herba aristolochiae, calcicola aristolochia root, rhizoma nardostachyos, diospyros kaki receptacle, valeriana officinalis, medicated leaven, cathay quince, rice-grain sprouts, Japanese pollia herb, semen raphani, resina ferulae, areca catechu, desmodium pulchellum, astragalus membranaceus, rhizoma atractylodis macrocephalae, common crapemyrtle leaves, Chinese yam, pyrola rotundifolia, white hyacinth beans, rhodiola rosea and hippophae rhamnoides. The medicinal preparation for treating deficiency cold of spleen and stomach type peptic ulcer has the efficacies of warming the middle-jiao and invigorating the spleen, and regulating stomach to relieve pain, has the major function of treating deficiency cold of spleen and stomach type peptic ulcer, can not only reduce gastric acid secretion, but also promote ulcer healing and protect gastric mucosa, and is short in treatment course, free of toxic and side effect and obvious in curative effect.