Abstract: A board separation apparatus and an operating method thereof are provided. The board separation apparatus includes a board separation machine and a composite board constituted of a plurality of circuit boards and carrier panels. The board separation machine includes a frame, first and second suction devices, and a linkage. The second suction device is positioned above the first suction device, and the composite board is placed in between the suction devices. The linkage connects the driving mechanism and second suction device. A separable interface layer is located in the composite board. When the suction devices are powered up to stick to the top and the bottom surfaces of the composite board, the linkage is pushed by the driving mechanism, so that the second suction device can move in relation to the first suction device, and one of the circuit board is separated from another one of the carrier panels.