A bacteriostatic agent made from traditional Chinese medicines takes 15-18 parts of glabrous greenbrier rhizome, 15-18 parts of flavescent sophora root, 145-155 parts of isatis root, 12-15 parts of phellodendron bark , 110-120 parts of dandelion, 5-8 parts of baikal skullcap root, 7-10 parts of gentian root, 75-80 parts of lilac flower, 60-65 parts of Chinese silkvine root bark, 10-12 parts of peppermint oil and 0.3-0.5 part of borneol as raw materials; the glarbrous greenbrier rhizome, the flavescent sophora root, the isatis root, the phellodendron bark , the dandelion, the baikal skullcap root, the gentian, the lilac flower and the Chinese silkvine root bark are soaked in ethanol solution and extracted to obtain filtrate, and the filtrate is blended with the peppermint oil and the borneol and then filled to obtain the bacteriostatic agent. The bacteriostatic agent made from the traditional Chinese medicines is made by selecting natural Chinese medicinal herbs with aromatic scent and aseptic and bacteriostatic effects as the raw materials, and can be used for treating dermatosis by spraying the agent on the surface of the focal skin, which can not hinder the normal respiratory metabolism of skin, and can cause agent to be quickly delivered to the subcutaneous focal part; in addition, the bacteriostatic agent has the advantages of quick curative effect and high bioavailability.