Abstract: Large quantities of organic waste water was produced during the processing of soybean products.The direct discharge of the waste water not only polluted the environment but wasted the resources,since many kinds of nutrient substances were contained in it.The article introduced the research progress on extracting functional matter from waste water in soy product processing,such as soybean oligosaccharides,soybean whey protein,soybean isoflavone,soybean saponin,soybean polysaccharide,and etc,which provided academic and practical base for the comprehensive utilization of waste water from soybean processing.

Key words: soybean oligosaccharides, soybean whey protein, soybean isoflavone, soybean saponin, soybean polysac-charide