A vehicle door lock device, including: a latch unit provided at a vehicle door, selectively adopting an unlatched state in which the vehicle door can be opened, or a latched state in which the vehicle door is maintained in a closed state, and transitioning from the unlatched state to the latched state in a case, in the unlatched state, in which the vehicle door is closed relative to the vehicle body; a mechanical operation unit switching the latch unit from the latched state to the unlatched state by means of at least one of operative parts being operated; an electrical operation unit connected to the mechanical operation unit, and switching the latch unit to the latched state or to the unlatched state, by means of power from a drive unit; and a cancellation unit that releases the connection between the electrical operation unit and the mechanical operation unit.