NOVELTY - An industrial wastewater sewage treating method involves entering hardly-degradable industrial waste water entering into urban wastewater plant, and adding carbon source into to the biological carbon pool, where the step of adding the carbon source is performed when the hardly-degradable industrial waste water influent chemical oxygen demand (COD) in biochemical pool beyond the normal workload of 0-20%, the increase of concentration of carbon in cast embarrassed when degradation of industrial wastewater does not enter into the biochemical pool of 0-10% water COD value, SRT to extend 10-20%.    USE - Method for treating industrial wastewater sewage.    ADVANTAGE - The method enables treating sewage with short sludge impact recovery time, long COD degrading effect, good COD degradation effect and processing the microorganism flora in sewage.    DETAILED DESCRIPTION - An industrial wastewater sewage treating method involves entering hardly-degradable industrial waste water entering into urban wastewater plant, and adding carbon source into to the biological carbon pool, where the step of adding the carbon source is performed when the hardly-degradable industrial waste water influent COD in biochemical pool beyond the normal workload of 0-20%, the increase of the concentration of carbon in the cast embarrassed when degradation of industrial wastewater does not enter into the biochemical pool of 0-10% water COD value, SRT to extend 10-20%, when biodegradable industrial wastewater into the biochemical pool make the COD load beyond the normal workload of 20 -80%, the dosing of the carbon source of embarrassment degradation concentration of 10 -30%, when the industrial waste water does not enter the biochemical pool COD values, SRT extension of 20-40%, and when the refractory into the industrial wastewater influent COD load makes biochemical pool beyond during normal workload greater than 80%, the concentration of carbon dosing embarrassed degradation of 30-40% when the industrial waste water does not enter the biochemical pool COD value, the SRT to extend the 40-80%, the carbon source is 1-3 wt.% creeping glucose, 2-4 wt.% starch and 3-7 wt.% methanol.