To easily open and close an outer lid in an electric pressure rice cooker and warmer having a main body of a pressure rice cooker and an outer lid having a pressurizing lid inside and the upper part of the main body.

The pressure lid 100 includes a plurality of guide parts 110 formed on the periphery, a rotating piece 120 placed turnably inside the guide parts, a plurality of securing members 130 moved along the guide parts, a hinge button 140a, a hinge server 140b, and a hinge sensor 140c connected turnably with the securing members, an opening and closing button 150 formed on one side of the hinge button to open and close the outer lid, a button member 150' provided on one side of the opening and closing button, a spring fixing devices 104a, 104b provided on the pressurizing lid, a rotation control spring 104 controlling the rotations of the rotating piece fixed to the spring fixing devices and a lock member 160 fastening the pressurize lid to the main body.