The present invention belongs to the technical field of insecticides characterized as surfactants, and specifically relates to a miticide, the miticide comprising a surfactant and a penetrating agent. The miticide has good, fast acting effects, is long lasting, safe and environmentally friendly, and stable; the application thereof is broad, as the miticide is not only capable of being used for mites is agriculture and forests, but also may be used for mites in medicine and livestock; the miticide has no drug residue or minimal residue, and the miticide effect is stable. The miticide is convenient to use, and may be used either alone or may be added directly into other chemical agents.