The invention provides a superimposed sheet feed detection device, a superimposed sheet feed detection method, and an electronic apparatus. The superimposed sheet feed detection device is provided with a transmission circuit board (51) on which an ultrasonic transmitter (31) for transmitting ultrasonic waves (56) is provided; an ultrasonic receiver (27) that receives ultrasonic waves (56); and a control unit that controls the ultrasonic transmitter and the ultrasonic receiver. The ultrasonic transmitter (31) transmits ultrasonic waves (56) in a direction intersecting the thickness direction ofthe transmission circuit board (51), either the ultrasonic transmitter (31) or the ultrasonic receiver (27) has a plurality of ultrasonic elements, and the control unit sets the ultrasonic element tobe operated among the plurality of ultrasonic elements.