Driving assistance control device

Provided is a driving assistance control device for a saddle-riding vehicle, the device having: an inter-vehicle distance acquiring unit that acquires the inter-vehicle distance in the vehicle width direction between the own vehicle and a parallel traveling vehicle that is another saddle-riding vehicle traveling parallel in a lane that is the same lane in which the own vehicle is traveling; a road condition acquiring unit that acquires a condition of the road on which the own vehicle is traveling; a target inter-vehicle distance setting unit that sets a target inter-vehicle distance in the vehicle width direction between the own vehicle and the parallel traveling vehicle according to the condition of the road; and an operation assistance unit that assists a driving operation by the driver on the basis of the inter-vehicle distance and the target inter-vehicle distance.