The invention relates to a keypress structure, which comprises a cap, a base module, one first connecting rod, one second connecting rod and one flexible rod, wherein said base module comprises one bottom plate and one movable plate; the bottom plate has one first guide groove and one second guide groove; the mobile plate has one first limit part and one second limit part, to move relative to the bottom plate; the first connecting rod is movably connected to the cap and the first guide groove; the second connecting rod is movably connected to the cap and the second guide groove; the flexible element is connected to the bottom plate and the first connecting rod to give one side flexible force on the first connecting rod; when the keypress structure is in operation state, the first limit part contacts the second connecting rod; when the sliding plate is switched into one contain state, the second limit part pushes the second connecting rod towards the outer side of said structure and lifts down the cap towards to the bottom plate. |