Abstract: Saccharomyces C59. when added with 1% of carbon, its contents of BOD, COD and the total amount of nitrogen in the organic waste water from silkworm chrysalis could be reduced. The reduction rates were 56.1%,44.0% and 46.1% respectively. And then the Sacchaomyces C59 could be comprehensively utilized. The ferment filtrate could be discharged harmlessly if it was further managed with ecosystem engineering, nade up of plants, microbes, lower animals and artificial roots so that the economic, ecological and social benefits would be well integrated.