Abstract: According to the several processing stages of soilless culture nutrition waste liquids, this paper induced the ultraviolet, ozone, heat, sand filtration and sterilization and comprehensive sterilization, the active carbon and nano TiO2 catalyst to remove organic acid and other toxic substances, temperature and nutrients-online monitoring and deployment device, and multistage absorption, planted with fish about subsequent utilization, at the end of paper the prospect of waste liquids also mentioned, in order to provide reference for future effective use of soilless culture nutrition waste liquids and reduce pollution on the environment.