Abstract: In this paper, seven commonly used pyrolytic wastewater treatment technologies were discussed from the aspects of technical principle, advantages and disadvantages, and the feasibility of each technology to treat pyrolytic wastewater was compared and analyzed. When the technical route of "pretreatment—biochemical treatment—advanced treatment—concentrated brine treatment" is adopted to treat pyrolytic wastewater, the effluent can meet the discharge requirements and reuse the water resources. The zero discharge of pyrolytic wastewater can be achieved to a certain extent, which is suitable for the areas lacking water resources. However, the process is complex, and the technical route is highly dependent on microorganisms, while the tolerance of microorganisms to hydrocarbon organics and aminophenol and other toxic substances is limited, which limits their treatment capacity for high concentration pyrolytic wastewater. The thermal treatment technologies destroy the molecular structure of various harmful substances through high-temperature chemical reactions which are not affected by water quality and water temperature. They can oxidize the organic and harmful substances in pyrolytic wastewater into harmless substances CO_2 and H_2O,which truly realizes zero discharge of pyrolytic wastewater. It is a very potential pyrolytic wastewater treatment technology. In this paper, the integrated technology of semi-coke high-temperature post-combustion and collaborative pyrolytic waste water incineration was finally proposed. Coal is first pyrolyzed in a fluidized bed pyrolysis furnace, and the pyrolytic wastewater generated during pyrolysis is sprayed into the combustion furnace under compressed air atomization. The heat released from semi-coke combustion after coal pyrolysis is used to provide heat for high-temperature incineration of pyrolytic wastewater. The reducing atmosphere in the furnace makes the majority of nitrogenous organic matter converted into NH_3,HCN and N_2,and the NO_x concentration produced in the combustion furnace is low. Post-combustion air is sprayed into the high-temperature post-combustion chamber, which can fully burn the unreacted CO and carbon residue in the combustion furnace to ensure the combustion efficiency of the system. The heat of high-temperature flue gas in the post-combustion chamber can generate high-temperature steam for power generation and heating. The integrated technology of high-temperature post-combustion of char and pyrolytic wastewater incineration combines the utilization of low rank coal with high-temperature post-combustion technology, and the advantages of post-combustion technology are used to reduce the emission of pollutants in the combustion process of char and pyrolytic wastewater. The key of this technology is to decompose the organic hazardous substances completely and ensure the original emission of NO_x,SO_2 and other pollutants to meet the standards, which has a broad development prospect. If the conditions of waste liquid incineration are further explored and the amount of waste liquid treated is increased, this technology can be used to treat not only pyrolytic wastewater, but also other industrial wastewater, which can effectively alleviate the problem of waste liquid treatment in China.