The invention discloses a traditional Chinese medicine composition for a diabetic foot. The traditional Chinese medicine composition is an external-use dosage form, and the traditional Chinese medicine composition is prepared from the following traditional Chinese medicine components: radix angelicae dahuricae, radix angelicae pubescentis, ramulus cinnamomi, herba ephedrae, radix sophorae flavescentis, cortex phellodendri, rhizoma coptidis, radix scutellariae lateriflorae, airpotato yam rhizome, radix clematidis, common threewingnut roots, rhizoma atractylodis, rhizoma typhonii, rhizoma smilacis glabrae, rhizoma chuanxiong, radix et rhizoma salviae miltiorrhizaef, radix astragali and radix angelicae sinensis. Through in vitro drug administration, in accordance with traditional Chinese medicine theory, circulation is carried out from head to wei chung point, so that a blood circulation condition of a foot part and sensory disturbance of a patient are improved, regeneration of necrotic parts of the foot part can be promoted, and the traditional Chinese medicine composition has a good treatment effect on the diabetic foot.