Abstract: The anaerobic fermentation-alage method, which selects a strongly aoid-resistant anaerobic methanobacterium and a strongly base-resistant Spirulina and Oscillatoria,respectively,treads the organic sewage containing COD_cr 50000 mg/l conceniration with using speeial anaerobic bacteria digestor and alage purifier and technology. It has measered COD_cr300 mg/l approximately with the drain away water. As the drain away water was treaded by alage purifying pool further, however, it is conforming to the law of sewage-draining. The purifying effect of Spirulina in anaerobic fermentation-alage method is comparable with the same-kindly patent in Japan.Using the anaerobic fermentation-alage method treads high-concentration organic sewage, either the methane for biological energy or the Spirulina containing about 60% protein for fine feed could be gained. This method will open a new route for in Zymurgy, food, medicine and so on for Comprehensive governing and utilizing the industrily sewage in our country.