The invention provides a disposal technique of nitrobenzene-containing sewage, which has remarkable economic and environmental benefits and comprises the steps: (1) the nitrobenzene-containing sewage is collected and treated by catalytic reduction, so that sewage containing phenyl amines can be obtained; (2) the sewage containing phenyl amines is mixed with the common sewage to obtain the mixed sewage; the pH value of the mixed sewage is regulated to be 8.0-8.5, and then physical treatment is carried out on the mixed sewage; (3) after physical treatment, the sewage enters a biochemical treatment system for biochemical treatment which sequentially comprises anaerobic treatment and aerobic treatment, wherein, the anaerobic treatment is that the returned nitrified liquid is treated under theanoxic condition, and nitrate nitrogen is transformed into nitrogen to be removed by denitrifying bacteria; and the aerobic treatment is moving bed biomembrane reactor technology; (4) after the biochemical treatment, the sewage enters subsequent processing procedure, and the treatment has discharge after reaching standards. The disposal technique can be widely applied to the industries such as dye, medicine, farm chemical, explosive and the like which contain a great deal of nitrobenzenes sewage.