The invention belongs to the technical field of traditional Chinese medicines, and relates to a traditional Chinese medicine for treating postmenopausal osteoporosis. The traditional Chinese medicine is prepared from prepared rehmannia, rhizoma cibotii, herba epimedii, fructus psoraleae, oyster, yam, prepared fleece-flower root, eucommia bark, gastrodia elata, medlar, dogwood fruit pulp, radix achyranthis bidentatae, codonopsis pilosula, donkey-hide gelatin, black sesame, parasitic loranthus, glossy privet and schisandra chinensis. The traditional Chinese medicine is in accordance with the theory of traditional Chinese medicinal differentiation, and is combined with the fact that the occurrence of postmenopausal osteoporosis is related to kidney deficiency and spleen deficiency, wherein kidney deficiency is a main pathogenesis of postmenopausal osteoporosis. From the view of traditional Chinese medicine, kidney governs bones and belongs to water in five elements, liver governs tendons and belongs to wood in five elements, so that deficiency of spleen and kidney means the loss of water and wood, which causes that wood is nourished; and tendons and bones are not tonified to cause postmenopausal osteoporosis with the passing of time. Thus, postmenopausal osteoporosis is treated by tonifying spleen and nourishing liver kidney to achieve the fundamental treatment effects of treating both principal and secondary aspect of disease, and preventing relapse.