Completely automated multi-shelf seedling growing system

A seedling growing system includes: a cargo transport container provided with heat insulating treatment; a movement robot for moving on a path in the cargo transport container; seedling growing tray racks including a multi-shelf germination rack for holding, until germination, a seedling growing tray on which seeds are sown, a multi-shelf seedling growing rack for holding a seedling growing tray on which seedlings have germinated, and a multi-shelf shipment rack for holding a seedling growing tray for shipping grown seedlings; and an arm or table provided to the movement robot and capable of transferring each seedling growing tray between the movement robot and each of the multi-shelf germination rack, multi-shelf seedling growing rack, and the multi-shelf shipment rack.