The invention relates to the technical field of copper-clad plate processing equipment, in particular to a semi-solid sheet separation machine. The semi-solid sheet separation machine comprises an ascending and descending table, wherein a conveying mechanism used for conveying semi-solid sheets onto the ascending and descending table is arranged in front of the ascending and descending table; a separation mechanism is arranged above the ascending and descending table; the separation mechanism is a feeder head; the ascending and descending table is connected with an ascending and descending mechanism; the ascending and descending mechanism controls the distance between the ascending and descending table top and the feeder head; a transmitting mechanism is arranged on the ascending and descending table; the transmitting mechanism transmits the semi-solid sheets positioned on the ascending and descending table to a position under the feeder head. The semi-solid sheet separation machine has the advantages that the feeder head is used for separation; the semi-solid sheet separation can be fast performed in a nondestructive way; the separation speed is accelerated; the product quality is improved; the generation of defective products is reduced; meanwhile, the transmitting mechanism is arranged on the ascending and descending table, so that the semi-solid sheets on the ascending and descending table are accurately moved to the position under the feeder head; the adsorption position is regulated, so that the feeder head can stably adsorb and separate the semi-solid sheets.