NOVELTY - A short-cut denitrification desulfurization wastewater treatment comprises acclimatizing process, and infusing wastewater. The acclimatizing process involves placing granular active sludge for producing methane into anaerobic granular sludge bed reactor. The infusing of wastewater containing carbon, nitrogen and sulfur involves oxidizing sulfide in wastewater into elemental sulfur, and denitrifying nitrite into nitrogen and converting organic substance into carbon dioxide under synergy of holophytic denitrifying bacteria and heterotrophic denitrifying bacteria.    USE - Method for short-cut denitrification desulfurization wastewater treatment (claimed).    ADVANTAGE - The method solves problem that conventional method has high operation cost and large energy power consumption to treat wastewater containing carbon, nitrogen and sulfur; takes nitrite as electronic receptor to oxidize sulfide and organic substance, thus saving energy consumption of oxidizing nitrite as nitrate and electronic receptor of reducing nitrate into nitrite, reducing carbon source required for reaction and reducing energy consumption; and recycles elemental sulfur, thus realizing waste recycle. The oxygen consumption of converting ammonia nitrogen into nitrite is small, thus reducing circulation cost.    DETAILED DESCRIPTION - The short-cut denitrification desulfurization wastewater treatment comprises acclimatizing process, and infusing wastewater containing carbon, nitrogen and sulfur. The acclimatizing process involves placing granular active sludge for producing methane into anaerobic granular sludge bed reactor; infusing wastewater containing carbon (C), nitrogen (N) and sulfur (S) to acclimatize holophytic denitrifying bacteria and heterotrophic denitrifying bacteria; balancing 2 microbes through competition and synergy; completing start up of reactor when removal rates of S, N and C in wastewater reach 80%, where N in wastewater exists in form of nitrate or nitrite, S exists in form of sulfide and C exists in form of organic substance, and concentration of S in the wastewater is 200 mg/L, concentration of N is 87.5 mg/L and concentration of C is 75 mg/L. The acclimatizing process is carried out at 20-35 degrees C, pH value of 7.0-9.0 and hydraulic retention time of 6-24 hours. The infusing of wastewater containing carbon, nitrogen and sulfur involves oxidizing sulfide in wastewater into elemental sulfur, and denitrifying nitrite into nitrogen and converting organic substance into carbon dioxide under synergy of holophytic denitrifying bacteria and heterotrophic denitrifying bacteria in anaerobic granular sludge bed reactor, where concentration of S in wastewater is 200-1200 mg/L, concentration of N is 75-450 mg/L and concentration of C is 23-525 mg/L, mole ratio of nitrite to sulfide is 0.1-6.0:1, mole ratio of nitrite to organic substance is 0.2-7.0:1. The infusing of wastewater is carried out at 20-35 degrees C, pH value of 7.0-9.0 and hydraulic retention time of 6-24 hours.