To provide a radar device which more accurately detects an obstacle.

The radar device for irradiating an electromagnetic wave, receiving a reflected wave of the electromagnetic wave reflected by an object, and detecting the object includes an irradiation means for irradiating the electromagnetic wave, an irradiation direction rocking means for rocking an irradiation axis showing the irradiation direction of the electromagnetic wave in the vertical direction, and an irradiation direction control means for facing a direction of the irradiation axis to a direction other than a horizontal direction by operating the rocking means at a prescribed timing.