The invention discloses a plaster with functions of dredging collaterals, expelling stasis and promoting bone growth. The plaster consists of the following components in parts by weight: 5-15 parts of safflower, 5-15 parts of radix notoginseng, 15-25 parts of eupolyphaga, 15-25 parts of frankincense, 15-25 parts of myrrh, 15-25 parts of rhizoma chuanxiong, 15-25 parts of dragon bone, 15-25 parts of acacia catechu, 15-25 parts of dipsacus asperoides, 40-60 parts of Chinese angelica, 40-60 parts of pangolin scales, 40-60 parts of eucommia ulmoides, 40-60 parts of radix aconiti, 40-60 parts of radix aconiti kusnezoffii 40-60 parts of garden balsam stem, 70-90 parts of rhizoma drynariae, 70-90 parts of rheum officinale and 40-60 parts of elephant hide. According to the plaster disclosed by the invention, rhizoma chuanxiong and radix aconiti kusnezoffii with acrid flavor and hot nature are adopted as main medicines and have the functions of expelling wind and removing cold and warming channels to relieve pain; the main medicines are supplemented by pangolin scales which has the main efficacies of dredging meridian and dispelling pathogenic factors and has the functions of activating blood and resolving stasis and dissipating wind and dredging collaterals, and the functions of activating blood and resolving stasis to relieve pain are enhanced together with the Chinese angelica, frankincense, myrrh, eupolyphaga, radix notoginseng, rhizoma chuanxiong, safflower and dipsacus asperoides; and the garden balsam stem has the functions of dispelling wind and eliminating dampness, relaxing tendon and activating blood and relieving pain.