The present invention relates to a trunk storage device for storing and withdrawing a wheelchair into a vehicle trunk； A manipulator provided in the roof of the vehicle for moving the wheelchair to the trunk storage device or moving the wheelchair from the trunk storage device； And a control unit for controlling the trunk storage unit to store and retrieve the wheelchair in a trunk and to control the manipulator to move the wheelchair, wherein the manipulator includes a base unit coupled to the roof of the vehicle, A link portion that is formed of links that are pivotally connected to each other and is pivotally coupled to the base portion at the tip end of the tip link positioned at the tip of the links, A driving part that is controlled by the control part and is provided at the joint part to control driving of the joint part； and a driving part coupled to the end link at the end of the link part, And an end-effector for clamping or unclamping the end effector, The joint part has a revolute or ratary joint structure in which the links are connected to each other so as to rotate relative to each other, a vertical motion joint joint structure, a joint structure in which the joints and the links are linearly moved relative to each other Wherein the end effector is formed of one or a plurality of combinations of a prismatic joint structure and a vertical motion boom joint structure, and between the horizontal joint structure at the rear end of the end link and the end effector, And a turning unit that rotates the wheelchair holding unit in a circumferential direction with respect to the wheelchair holding unit. Therefore, by minimizing the storage space of the vehicle roof, it is possible to compensate for the disadvantages of the existing appearance by improving the appearance, minimize the air resistance and minimize fuel consumption reduction, and reduce the space required for the trunk for wheelchair storage. SUV vehicles can be widened to broaden the range of the
