A saddle-riding type vehicle includes: a vehicle body frame; a swing arm supported in a swingable manner with respect to a pivot frame of the vehicle body frame; and a rear suspension in which a link arm supported by the swing arm and the pivot frame are coupled, and damping is controlled by a hydraulic oil. In addition, the saddle-riding type vehicle includes: a sub-tank provided in the rear suspension and storing the hydraulic oil; and a detection sensor that detects behavior of a vehicle body while traveling. Moreover, in a top view of the saddle-riding type vehicle viewed from above, the sub-tank and the detection sensor are disposed so as to overlap with each other.