According to biochemistry principle and chemical reactor th-eory, the process of treating brewery wastewater has been discussed and the conception of the specific substrate removal rate of packing area and thespecific substrate removal rate of blanket volume are put forward in this pa-per. The basic form of anaerobic treating organic wastewate kinetic modelis U=U_(max). S/ (K+S). The coefficiente of the reactor to treat brewery waste-water are determined.