The technique of high pressure food processing is incomparably superior to that of single heat processing. The technique of extrusion cooking has been applied to the production of expansion starch food and extrusion protein food and to the special chemical and bio-chemical reaction. The technique of super high pressure processing has been applied in sterilizing bacteria, denaturing food, improving food sensuous nature and speeding up some reaction in food processing. An introduction is given to the work pr...