Catechol, commonly known as catechol or pyrocatechol, exists in nature in the form of various derivatives. It is an important fine chemical raw material and is widely used in pesticides, medicines, spices, dyes, photosensitive materials, rubber and other industries. Catechol can also be used as a rubber hardener, electroplating additive, skin preservative, hair dye, photographic developer, color photography antioxidant, fur dyeing developer, paint anti-skinning agent. Although catechol has a wide range of applications in production, it is also a type of highly toxic organic matter that is difficult to degrade and seriously pollutes the environment.