The invention discloses a food material automatic control grinding machine. The food material automatic control grinding machine comprises a base. Third springs and a support are mounted on the upper portion of the base. A shell is mounted at the upper ends of the third springs and is a cylindrical shell with an opening in the upper portion. A dedicated special grinding steel plate is mounted at the bottom of the inner side of the shell and is an arc plate. The arc of the dedicated special grinding steel plate faces downwards. Dedicated special grinding steel is adopted for manufacturing a dedicated special grinding steel grinding head and the dedicated special grinding steel plate which are used as main grinding materials of the food material automatic control grinding machine, and the amino acid dissolution rate after nut fruit food materials are ground can be effectively increased.