To provide a slip ring device capable of realizing a small size in a radial direction of a whole of device by arranging a pair of slip rings at positions opposed to each other.

In the slip ring device 10, an electric connection between relatively rotatable stationary body 11 and rotation body 20 is carried out by slide- contacting slide contact elements 17, 18 provided at the stationary body 11 side with slide surfaces 34a, 35a of conductive rings 34, 35 of the slip rings 30, 31 provided at the rotation body 20 side. A pair of slip rings 30, 31 are detachably mounted to the rotation body 20 such that the respective slide surfaces 34a, 35 are opposed to it at a predetermined interval. The slide contact elements 17, 18 slide-contacted with the respective slide surfaces 34a, 35a of the conductive rings 34, 35 of a pair of slip rings 30, 31 are provided on the stationary body 11.