The invention discloses a drug for treating neural injury caused by chemotherapy. The drug comprises astragalus, angelica sinensis, asarum, sun-dried ginseng, lycopodium clavatum, radix clematidis, radix paeoniae alba, fresh ginger, safflowers, scorpions, earthworms, ginseng, ligusticum wallichii, salvia miltiorrhiza, peach blossoms, fructus trichosanthis, rheum officinale, epimedium herbs, ginkgo leaves, velvet antlers, radix puerariae, stiff silkworms, rhodiola rosea, leeches, tinospora sinensis, mulberry twigs, centipedes, cassia twigs, peach kernels, caulis spatholobi, liquorice, myrobalan, radix aconite kusnezoffii, rhizoma acori graminei, radix aucklandiae, musk, coral, pearls, clove, semen myristicae, agilawood, limonite and magnetite. The effects of regulating qi and blood of the whole body and dredging collaterals to remove the obstruction of qi and blood circulation are achieved according to the principles of dredging in replenishing, replenishing in dredging, replenishing and dredging combination as well as static and dynamic combination, so that the symptoms including coldness, numbness, pain and flaccidity are gradually relieved until disappearing. The drug is capable of promoting blood circulation and ensuring proper downward flow of the blood, has a remarkable effect of promoting blood circulation to remove meridian obstruction for a patient suffering from neural injury caused by chemotherapy and can also take the effects of replenishing qi and enriching the blood as well as strengthening muscles and relieving pain, so that the survival quality of the patient is improved, and the life of the patient is prolonged.