The invention discloses a tail gas green management process for use in the oxidization of benzene homologues in the air. The process comprises the following steps of: introducing high-temperature pressed tail gas which is generated in the oxidization of the benzene homologues in the air and severs as power and a heat source into a turbine refrigerator to do work for preparing cold energy, condensing the vapor phase at the top of a flash evaporator and condensing and tripping the organic carried by tail gas by using the prepared cold energy; and secondly, introducing the tail gas after the temperature reduction and depressurization into corresponding heat exchanger to supply part of the heat and a pre-heating reaction raw material to a flash tower; and thirdly, introducing the condensed and trapped tail gas into a water-absorbing washing tower system to further remove the carried trace organics. The process can fully use the pressure energy and heat energy in the tail gas and can use the cold energy prepared by the pressure energy to condense and trap the organics carried by the tail gas, so that the emission of pollutant in the tail gas is reduced greatly, resources are recycled and noise pollution is removed at the same time. The efficiency of trapping the organics carried by the tail gas reaches over 99.9 percent, and the use efficiency of the heat energy in the tail gas reaches over 80 percent.