A control device configured to control a vehicle lamp capable of illuminating a front of a vehicle, the vehicle lamp including a first lamp unit configured to form a low beam light distribution pattern, and a second lamp unit configured to form, on a road surface, a road surface drawing light distribution pattern whose shape changes depending on presence or absence of a rut, the control device comprising:
- a control unit configured to control the vehicle lamp according to information on a light distribution pattern to be formed by the vehicle lamp,
- wherein the control unit is configured to control, in a case in which a snow accumulation situation in front of the vehicle is detected, driving of the vehicle lamp to form the low beam light distribution pattern and the road surface drawing light distribution pattern.