The invention discloses low profile switches for standard mechanical profile switch/MX profile switch keyboards, the low profile switch installed on PCB of standard mechanical profile switch/MX profile switch keyboards, the bottom of low profile switches arranged with a positioning column, the outer diameter of positioning column being 3.85 mm0.15, one side of positioning column arranged with a moving unit pin and a stationary unit pin, the distance between moving unit pin and positioning column in X direction being L1, the distance between the moving unit pin and the positioning column in Y direction being L2, the distance between the stationary unit pin and the positioning column in X direction being L3, and the distance between the stationary unit pin and the positioning column in Y direction being L4; low profile switches in the invention compatible with standard mechanical profile switch/MX profile switch keyboards, to promote low profile switches at lower costs.