Abstract: Waste liquids of chemistry and chemical laboratories have complex components and various types, causing serious pollution when discharged arbitrarily. With the expansion of the enrollment scale and the vigorous development of scientific research, the amount of laboratory waste fluids also increases sharply. How to effectively separate and treat waste liquids and reduce the amount of waste liquids from the source is the key to solving the problem of waste liquids. The generation of waste liquids can be recycled efficiently by strengthening the environmental awareness of the experimenters, conducting green chemistry experiments, setting up special funding support and strengthening the supervision of the government and environmental protection departments. In addition, it is possible to radically reduce the generation of waste liquids by conducting mini-experiments and simulation experiments, and improving experimental conditions, among other methods, thereby providing suggestions for waste liquid recovery and treatment.