The invention discloses a traditional Chinese medicine composition for treating phlegm-dampness and collateral-obstruction type femoral head necrosis. The traditional Chinese medicine composition is characterized by being prepared from the following medicinal materials in parts by weight: 8 parts of arenaria kansuensis Maxim., 20 parts of ophiopogon corifolius, 15 parts of beefwood-like clubmoss herb, 10 parts of radix zanthoxyli, 15 parts of Yunnan schisandra chinensis root, 10 parts of root of wallich swallowwort, 15 parts of membranaceous beautyleaf root, 15 parts of polygala fallax hemsl, 15 parts of ventilago leiocarpa benth, 12 parts of dendrophthoe pentandra, 4 parts of actler glue, 10 parts of morinda officinalis, 12 parts of cardamine macrophylla willd, 12 parts of calystegia soldanella, 15 parts of beautiful sweetgum fruit, 20 parts of penthorum chinense pursh, 15 parts of prepared pinellia tuber, 12 parts of pummelo peel, 8 parts of Merremiayunnanensis(Courch.etGagnep.)R.c.Fang, 12 parts of Japanese ardisia herb, 10 parts of ground beetle and 6 parts of liquorice. The traditional Chinese medicine composition is used for treating femoral head necrosis, is high in effective rate and is reliable in curative effect; with the adoption of the traditional Chinese medicine composition, the phlegm-dampness and collateral-obstruction type femoral head necrosis can not relapse after healing.