The invention discloses a time-delay boosting electric pressure cooker which comprises a cooker body, wherein a controller, a connecting plate, a sliding chute, a sliding block, a supporting rod, a cooker cover, a handle, an exhausting column, a gas outlet head and an electromagnetic valve are arranged on the cooker body; the controller is fixedly connected in front of the cooker body; the connecting plate is fixedly connected to the upper right of the cooker body; the sliding chute is located inside the connecting plate; the sliding block is movably connected inside the sliding chute; the supporting rod is fixedly connected to an upper end of the sliding block; the cooker cover is fixedly connected to a left end of the supporting rod; and the handle is fixedly connected to an upper end ofthe cooker cover. The controller, the electromagnetic valve and a temperature sensor can be combined to effectively control the pressure in the electric pressure cooker when cooking rice, and rapidlyabsorb enough water when the interior of the cooker is in a semi-high pressure state; the electromagnetic valve is controlled to be closed by the controller after reaching a set time, and then the cooker continues to boost.