To provide a vehicle distance following controller capable of securely detecting the changeover and change of a preceding vehicle even if a change in vehicle distance before and after the changeover of the preceding vehicle is small when the preceding vehicle is changed due to an interruption and leaving.

This vehicle distance following controller for letting own vehicle follow the preceding vehicle running ahead of own vehicle for control is provided with a vehicle distance detection part 3 detecting a vehicle distance between own vehicle and the preceding vehicle, a relative speed detection part 4 detecting the relative speed of own vehicle and the preceding vehicle, and a changeover condition detection means 5 detecting the changeover and change of the preceding vehicle based on a change X in vehicle distance and a change VA in relative speed.