The invention discloses a stock article management system, a carrying device, and a butt joint method for the carrying device with a carried object. The method comprises the following steps: obtaininga butt joint instruction for the butt joint with the carried object in a working space; obtaining the coordinates of the carried object in the working space; obtaining the real-time coordinates of the carrying device in the working space; setting an optimization path of the carrying device to the carried object; issuing at least one advancing instruction according to the optimization path; driving the carrying device to advance to the position of the carried object according to the advancing instruction; and carrying out the butt joint of the carrying device with the carried object.