The invention discloses a pollution-free biopesticide. Specifically, the pollution-free biopesticide is prepared from the following components existent in powder way in parts by weight: 10-200 parts of black false hellebore, 100-200 parts of fructus cnidii, 100-200 parts of rhizoma coptidis, 50-80 parts of pepper, 50-80 parts of pokeberry root, 20-40 parts of euphorbia kansui and 20-40 parts of root of tripterygium wilfordii, and the granurality of the powder is 25-50 microns. The biopesticide disclosed by the invention is fast in effect playing, and the effect initiating time is shortened to half an hour, and the effect is better than the chemical pesticide; the biopesticide is innocuous to people and livestock, and cannot produce phototoxicity on crops, is free from pesticide residue and environment pollution; the biopesticide can be prepared through simple grinding and mixing, the method is simple and easy to implement, and suitable for industrial production.