The invention belongs to a preparation, namely a blood conducting powder containing kudzuvine root and safflower, for treating hemiplegia. The preparation is prepared from the following traditional Chinese medicines in parts by weight: 6-80 parts of kudzuvine root, 5-50 parts of safflower, 10-120 parts of radix astragali, 10-50 parts of gastrodia elata, 10-50 parts of eucommia ulmoides, 10-30 parts of lumbricus, 10-30 parts of salviae miltiorrhiza, 10-30 parts of curcuma aromatica, 10-50 parts of acorus gramineus, 10-50 parts of dragon bone, 10-50 parts of panax notoginseng, 10-50 parts of ligusticum wallichii, 10-50 parts of radix paeoniae alba, 10-50 parts of Chinese angelica, 10-50 parts of cyathula officinalis and 10-50 parts of taxillus sutchuenensis. The blood conducting powder has the effects of tonifying qi, activating blood, dispersing blood stasis and dredging collaterals, and is used for apoplexy and apoplexy involving both collateral and meridian caused by qi deficiency, blood stasis and venation stasis as well as chest pain, chest distress, palpitation and shortness of breath caused by hemiplegia, numbness of limb, facial paralysis, stiff tongue and impeded speech and chest obstruction; cerebral infarction belongs to the syndromes, and the curative effect on the cerebral infarction is obvious. The blood conducting powder has the advantages of being noninvasive, painless, convenient to take, free of side effect and high in cure rate.