Disclosed are: a fat-reduced soymilk having a reduced fat content, which is produced by separating a fat from a fat-containing soybean efficiently without relying on an organic solvent; and a novel fat-rich soybean material. Specifically disclosed are: a fat-reduced soybean protein material characterized by containing a protein and a carbohydrate at a total content of 80 wt% or more in terms of dried form content, containing a fat (as an extract from a chloroform/methanol mixed solvent) at a content of less than 10 wt% relative to the content of the protein, and containing campesterol and stigmasterol (as plant-derived sterols) at a total content of 200 mg or more relative to 100 g of a fat; and a soybean emulsion composition characterized by containing a protein at a content of 25 wt% or more in terms of dried form content, containing a fat at a content of 100 wt% or more in terms of dried form content relative to the content of the protein in terms of dried fonu content, and having an LCI value of 60% or mo
