A system for treatment of methanol aromatized process wastewater comprises a high-temperature steam stripping device for removing most of organic matters in the wastewater, a carbon medium absorption device for removing organic acids and a part of organic matters in the wastewater of the high-temperature steam stripping device, and an anion exchange system for reducing the amount of the organic acids in the wastewater of the carbon medium absorption device to be trace amount. During treatment, the methanol aromatized process wastewater firstly enters the high-temperature steam stripping device, and a large amount of organic matters and a small amount of organic acids are removed in the high-temperature steam stripping device; then, the organic matters and the organic acids are absorbed and further removed in the carbon medium absorption device; and finally, the wastewater enters the anion exchange system, the organic acids are removed, and the concentration of the organic acids in the discharged wastewater is allowed to be lower than 20 ppm. An alkali liquid is not adopted for neutralization, and therefore, the salt content in the wastewater can be reduced, and subsequent treatment and utilization difficulties are reduced; and the system can greatly shorten the wastewater treatment flow path, reduces investment of wastewater treatment, and besides has the advantages of low energy consumption, easy regeneration of a carbon medium, long service life and low operation cost.