The invention discloses a one-key multifunctional photoelectric mechanical keyboard and belongs to the technical field of keyboards. The one-key multifunctional photoelectric mechanical keyboard comprises an upper cover and a lower cover, wherein ten protruding keys are arranged on the upper cover, a
pressure sensor is pasted onto each key, an insulation film is pasted onto an upper surface of thepressure sensor, an upper PCBA is arranged below the upper cover, the
pressure sensor and the upper PCBA are connected by a
pressure sensor connection wire, an
infrared ray receiving tube is arrangedabove the upper PCBA, a shading cover is arranged above the
infrared ray receiving tube, and a lower PCBA is arranged above the upper PCBA. The thin
film pressure sensor and the
infrared tube are combined, the one-key multifunctional photoelectric mechanical keyboard is stable and reliable in performance, rapid in
frequency response, long in service lifetime and high in interference resistant capability, multiple functions are achieved by one key, a finger position is not needed to move during
key pressing, only gesture is made, the one-key multifunctional photoelectric mechanical keyboard isconvenient, a few keys are used, the one-key multifunctional photoelectric mechanical keyboard is small in size and low in cost,
mass production is facilitated.