The present invention discloses a dual-contact mechanical keyboard switch. The dual-contact mechanical keyboard switch comprises a key pad, a key shaft and an upper cover; the key pad and the upper cover are in buckle connection and are assembled to a housing, the housing is provided with a holding groove configured to hold the key shaft, the key shaft is movably inlaid in the holding groove, thetop end of the key shaft is extended out of the holding groove and the upper cover and then is fixedly connected with a key cap, the shaft core of the key shaft movably penetrates the key pad and thenis extended, and the shaft core of the key shaft is sleeved with a spring movably connected with the key pad; a static
wafer is fixedly arranged at the side of the matching key shaft in the holding groove, two movable wafers are arranged beside the static
wafer side by side, the two movable wafers are both provided with contacts being in movable contact with the static
wafer, the two contacts arelocated in a straight line in a vertical direction, the two movable wafers are both provided with drive portions in an
extrusion mode configured to be in movable contact with the key shaft and butt against the movable wafers to allow the two contacts to be synchronously flicked with the static wafer, and the two drive portions are located in the same height position in the vertical direction. Thedual-contact mechanical keyboard switch is compact in structure, good in contact, good in stability and long in service life.