Abstract: A four-way switching valve core, comprising: a valve core shell; a rotation axis, with its upper end penetrating through the valve core shell; a fixing seat, connected to a lower end of the rotation axis; an upper ceramic plate, connected to a lower end of the fixing seat; a bottom cover, on which is provided with four water input-output ports, and is connected to a lower end of the valve core shell; a lower ceramic plate, on which is provided with four water passage holes, connected to and in communication with the four water input-output ports, and is connected to the bottom cover; and a water passage slot set, disposed on the upper ceramic plate, used to open and close the water passage holes. The four-way switching valve core further includes: a slot hole, a bead, a spring, and four position blocking slots.