Abstract: A method and apparatus for producing fine deodorized soybean powder in which washed and dyhydrated soybeans are pressed flat to a degree not to remove fat from the vegetable. The pressed soybeans are: dried to a moisture content of about 3% in a low temperature atmosphere; coarsely ground to the grain size of mesh; and stripped of the seed coats to leave only the seed leaves by a blast of air. The seed leaves are cooked to deodorize them for a short time period and at the same time excess moisture is removed from the seed leaves by vacuum suction. The seed leaves are ground to a grain size of 80 - 90 mesh and the seed leaves are further finely ground to a grain size of 1000 mesh.