The invention belongs to the technical field of mechanical processing equipment, and particularly relates to a middle roll-over table of an automatic stamping mechanical hand. When the automatic stamping mechanical hand takes out parts from an upper press, and part angle regulation needs to be carried out on a next station, a middle roll-over device is firstly regulated to a part receiving state: a positioning device is positioned below the mechanical hand, a clamping plate below the positioning plate is closed by a clamping air cylinder, a clamping plate above is opened, the mechanical hand puts the parts into the positioning device, the clamping plate above the positioning device is closed to fix the parts, the whole supporting roll-over mechanism moves to the outer part of the mechanical hand, a second servo motor works after the whole supporting roll-over mechanism is regulated to a proper position, the parts are rolled over to a needed angles, and the supporting roll-over mechanism is moved to a position below the mechanical hand through a first servo motor, so that the clamping plate above the positioning device is opened, the parts are taken away by the mechanical hand, and part roll-over transportation is completed.