NOVELTY - Aerobic treatment of high-salt monosodium glutamate wastewater comprises mixing wastewater with domesticated aerobic denitrifying sludge, taking aerobic denitrifying bacteria as main material to realize aerobic denitrification treatment in high-salt environment so as to perform nitrification and denitrification in same treating course, and sending in pre-aerating tank; flowing through four aeration tanks with gradually increased dissolved oxygen (DO) value; and sending part of sewage to secondary sedimentation tank, and performing coagulating sedimentation to formed effluent and discharging.    USE - Method for aerobically treating high-salt monosodium glutamate wastewater.    ADVANTAGE - The entire denitrification course is performed with high dissolved oxygen, performs biochemical, nitrification and denitrification reaction, and accelerates biochemical reaction so as to have a higher efficiency. The method has simple flow, saves investment, has low running cost and discharges wastewater that reaches national third-grade emission standard.    DETAILED DESCRIPTION - Aerobic treatment of high-salt monosodium glutamate wastewater, comprises:    (A) guiding high-monosodium glutamate wastewater in a collecting tank;    (B) mixing wastewater with domesticated aerobic denitrifying sludge, taking aerobic denitrifying bacteria as main material to realize aerobic denitrification treatment in high-salt environment so as to perform nitrification and denitrification in a same treating course, and sending in a pre-aerating tank;    (C) sequentially flowing through four aeration tanks with gradually decreased pH value and gradually increased dissolved oxygen value; and    (D) sending part of treated sewage to a secondary sedimentation tank to separate sludge and water, flowing the formed reflux sludge to pre-aerating tank, and performing coagulating sedimentation to the formed effluent and discharging; or using the other part of treated sewage as reflux sewage to reflow to pre-aerating tank and first aeration tank; and then continuing a secondary treatment; and    (E) repeating steps (A) to (D), and reflowing part of the treated effluent and directly discharging the rest.