An electric grating food processor including a food material receiving section 18 that has an opening in its upper part and receives processed food materials therein, a cylindrical food material charging section 68 that has a lower end opening at its lower end, a grater plate 58 that is rotated or linearly reciprocated under the lower end opening of the food material charging section, and a drive unit for operating (rotating or linearly reciprocating) the grater plate; and the grater plate is formed with larger grating blades on one surface side thereof and lower grating blades on another surface side thereof, and the grater plate is further provided thereon with a gap adjuster 98 that adjusts the gap between the tip ends of the grating blades and the lower end opening of the food material charging section.