Disclosed is a method for improving the filtering properties of a defatted soymilk peptide. Also disclosed is a defatted soymilk peptide having improved filtering properties. The filtering properties of a defatted soymilk peptide can be improved by adding a calcium salt to the defatted soymilk peptide in an amount of 0.6 wt% or more in terms of calcium content relative to the crude protein content. The resulting mixture is filtered once or more times to produce a defatted soymilk peptide having improved filtering properties. The defatted soymilk peptide is characterized by containing a calcium salt in an amount of 0.4 wt% or more in terms of calcium content relative to the crude protein content.
