PROBLEM TO BE SOLVED: To provide a method for manufacturing a granular soybean protein uniformly impregnated with saccharide.SOLUTION: The method for manufacturing a granular soybean protein impregnated with saccharide includes heating the mixture of granular soybean protein and saccharide at 40°C to 100°C under deaerated conditions or under presence of ethanol. The solid content of saccharide is 100 to 300 mass parts relative to 100 mass parts of the granular soybean protein, and the dry weight of the granular soybean protein impregnated with saccharide is 60 to 77 mass%. Bread and confectionery are provided using the granular soybean protein impregnated with saccharide.