NOVELTY - A synchronous denitrification sludge fermentation coupling denitrification treatment self-maintaining high ammonia nitrogen nitrification method comprises transporting sewage treatment plant discharge sludge and anaerobic digestion sludge discharged to a sludge fermentation synchronous denitrification system, maintaining sludge concentration, controlling nitrite content and nitrate content, running continuously, and controlling anaerobic ammonia-oxidizing bacteria sludge concentration.    USE - A synchronous denitrification sludge fermentation coupling denitrification treatment self-maintaining high ammonia nitrogen nitrification method.    ADVANTAGE - The method reduces total nitrogen concentration, and has high efficiency.    DETAILED DESCRIPTION - A synchronous denitrification sludge fermentation coupling denitrification treatment self-maintaining high ammonia nitrogen nitrification method comprises:    (A) utilizing sludge fermentation synchronous denitrification system comprising a nitration liquid water inlet pool (1), a storage tank (2), a water tank (3), a sludge discharge pool (4), a sludge fermentation synchronous denitrification anaerobic ammonia oxidation reactor (5), a main pH gauge, oxidation/reduction potential gauge, a temperature control device, a stirring device, a buffer bottle, a heating rod, a temperature probe, a grid, a sponge filler, a sampling port, a drain valve, a mud discharging valve, a water inlet pump, a feeding pump, a water sealing device, a collecting opening, and a sludge discharging valve; and    (B) transporting sewage treatment plant discharge sludge and anaerobic digestion sludge discharged having a volume ratio of 1:1 to the sludge fermentation synchronous denitrification system, maintaining sludge concentration at 6000-8000 mg/l, stirring for 12 hours, controlling nitrite content at 180-280 mg/l and nitrate content at 0-30 mg/l, running continuously for 15 periods, and controlling anaerobic ammonia-oxidizing bacteria sludge concentration at 300-500 mg/l.    DESCRIPTION OF DRAWING(S) - The drawing is a schematic view of a sludge fermentation synchronous denitrification system.    Nitration liquid water inlet pool (1)    Storage tank (2)    Water tank (3)    Sludge discharge pool (4)    Sludge fermentation synchronous denitrification anaerobic ammonia oxidation reactor (5)