A partition provided between a pair of vehicle seats arranged to face each other in a vehicle cabin is provided to extend from an upper part to a lower part of the vehicle cabin in a partitioning state. Therefore, the partition in the partitioning state can block respective visual lines of occupants seated in the pair of vehicle seats. Since the partition in the non-partitioning state is accommodated in a predetermined position, by setting the partition to the non-partitioning state when the occupant is seated on only one side of the pair of vehicle seats or the like, the occupant can obtain a feeling of openness. The partition can be selectively switched between the partitioning state and the non-partitioning state by an operation switch. Accordingly, it is possible to secure a private space for allowing the occupant to have a comfortable state or a relaxed state inside the vehicle cabin.