The invention relates to an advanced treatment and reuse method of high-temperature nitrochlorobenzene wastewater, and concretely relates to a method for treating high-temperature nitrochlorobenzene wastewater by utilizing a membrane separation technology. The method comprises the following steps: 1, directly filtering water obtained after the oxidation-gravity settlement of nitrochlorobenzene wastewater by an ultrafilter membrane filtration system; 2, carrying out primary pressurization of water obtained after the ultrafilter membrane filtration in step 1, and directly conveying the pressurized water to a primary reverse osmosis membrane system for filtration; and 3, carrying out secondary pressurization of water filtered in step 2, and directly conveying the filtered water obtained in step 2 to a secondary reverse osmosis membrane system for filtration, wherein water obtained after the secondary reverse osmosis is process reuse water. The finally obtained treated nitrochlorobenzene wastewater can satisfy quality requirements of make-up water for middle and low pressure boilers.