The present invention provides a recording device that offers a large displacement control effect. The recording device includes a recording medium 224, a motor 222 that drives the recording medium, and a recording device head M1 that records and reproduces a signal to and from the recording medium. The recording device also has a displacement control mechanism M2. The displacement control mechanism M2 includes a vibrating plate 226 that has two opposing surfaces facing the recording medium, the vibrating plate being displaced in the rotation axis direction of the recording medium; and an oscillator 232 that is positioned away from the two opposing surfaces of the vibrating plate facing the recording medium, the oscillator driving and displacing the vibrating plate.