The invention provides an electric pressure cooker realizing simple and convenient cover opening operation. The electric pressure cooker comprises a cooker body, a cooker cover and a fastener, wherein the fastener comprises a movable clamp arranged on the cooker cover and a buckle piece positioned on the cooker body, the cooker cover is buckled to the cooker body through the fastener, the cooker cover comprises a lock cover and a liner, the lock cover rotates to realize the locking and unlocking of the lock cover and the cooker body, the cooker cover is further provided with a rotation base and a shift fork part linked to the rotation base, the rotation base drives the lock cover to rotate through the shift fork part, the rotation base is provided with a trigger part, the liner is provided with a rotation drive part positioned between the trigger part and the movable clamp, the rotation base drives the lock cover to rotate to the unlocking position, meanwhile, the trigger part triggers the rotation drive part, the rotation drive part pushes the movable clamp, and the movable clamp is separated from the buckle piece, so that the cooker cover is opened. According to the electric pressure cooker, the shift fork part drives the lock cover to rotate, when the lock cover rotates to the unlocking position, cooker teeth are staggered from cover teeth, meanwhile, the movable clamp is triggered, then the cooker cover is opened, the cooker cover is opened only through one rotation step, and thus the use by a user is facilitated.