A delivery system comprising: a delivery vehicle configured to carry a delivery box to be delivered to a delivery destination ; and a carrier vehicle configured to carry the delivery vehicle thereon, characterized in that the carrier vehicle includes: an automated warehouse configured to store a plurality of delivery boxes and change locations of the plurality of delivery boxes ; and a controller configured to control the automated warehouse such that the delivery box to be delivered to the delivery destination is located at a receipt location within the carrier vehicle at which the delivery vehicle can receive the delivery box by the time the delivery vehicle gets out of the carrier vehicle at a relay point on a delivery route from a shipping place to the delivery destination , and upon receiving the delivery box located at the receipt location, the delivery vehicle carries the delivery box to be delivered to the delivery destination thereon; the delivery vehicle gets out of the carrier vehicle when the carrier vehicle arrives at the relay point for the delivery destination ; and the delivery vehicle travels on the delivery route from the relay point to the delivery destination to deliver the delivery box to the delivery destination . a delivery vehicle configured to carry a delivery box to be delivered to a delivery destination ; and a carrier vehicle configured to carry the delivery vehicle thereon, characterized in that the carrier vehicle includes: an automated warehouse configured to store a plurality of delivery boxes and change locations of the plurality of delivery boxes ; and a controller configured to control the automated warehouse such that the delivery box to be delivered to the delivery destination is located at a receipt location within the carrier vehicle at which the delivery vehicle can receive the delivery box by the time the delivery vehicle gets out of the carrier vehicle at a relay point on a delivery route from a shipping place to the delivery destination , and upon receiving the delivery box located at the receipt location, the delivery vehicle carries the delivery box to be delivered to the delivery destination thereon; the delivery vehicle gets out of the carrier vehicle when the carrier vehicle arrives at the relay point for the delivery destination ; and the delivery vehicle travels on the delivery route from the relay point to the delivery destination to deliver the delivery box to the delivery destination . an automated warehouse configured to store a plurality of delivery boxes and change locations of the plurality of delivery boxes ; and a controller configured to control the automated warehouse such that the delivery box to be delivered to the delivery destination is located at a receipt location within the carrier vehicle at which the delivery vehicle can receive the delivery box by the time the delivery vehicle gets out of the carrier vehicle at a relay point on a delivery route from a shipping place to the delivery destination , and upon receiving the delivery box located at the receipt location, the delivery vehicle carries the delivery box to be delivered to the delivery destination thereon; the delivery vehicle gets out of the carrier vehicle when the carrier vehicle arrives at the relay point for the delivery destination ; and the delivery vehicle travels on the delivery route from the relay point to the delivery destination to deliver the delivery box to the delivery destination . <EOS>