A processed soybean material is produced by milling starting soybeans (non-defatted soybeans or defatted soybeans) to generate soybean powder, adding water to the soybean powder to make a solution containing the soybean powder, swelling the soybean powder, heating the solution containing the swollen soybean powder and then pressurizing the heated solution. Use of the processed soybean material thus obtained makes it possible to produce a processed soybean food which is free from the characteristic smell or coarseness of soybeans and contains fiber components.