An operation detection device that includes a panel that receives a touch operation from a first main surface or a second main surface; a pressing operation detection unit that detects a pressing operation on the first main surface or the second main surface of the panel; an electrostatic capacitance sensor that detects the touch operation on the first main surface or the second main surface of the panel; and a control unit that determines, according to a detection result of the pressing operation detection unit, which of the first main surface and the second main surface the pressing operation is performed and switches a driving mode of the electrostatic capacitance sensor.