The invention relates to a processing technology of taurine production sewage. According to the processing technology, a three-stage bio-contact oxidation method is adopted, after the sewage is preprocessed in a regulating reservoir, the sewage is processed in a first stage anaerobic hydrolysis tank, a second stage facultative tank, and a third stage aeration aerobic tank, then the sewage is processed in a precipitation tank and an adsorption tank, and finally the qualified sewage is discharged. The provided technology has the characteristics of high biological load and high processing efficiency, and is capable of effectively removing harmful substances in sewage such as COD, BOD, NH3-N, SO4<2->, NO3<->, S<->, and the like. The processed taurine production sewage can reach the standard of table two in Discharge Standard of Water Pollutants for Pharmaceutical Industry Chemical Synthesis Products Category, and can be applied to greening, toilet, cleaning, and the like.