Plate splicing mortise and tenon joint structure and clamping piece machining method thereof

The invention discloses a plate splicing mortise and tenon joint structure and a clamping piece machining method thereof. The plate splicing mortise and tenon joint structure comprises an integrally-formed clamping piece. The clamping piece comprises an upper clamping plate, a lower clamping plate, two connecting plates and a limiting block, all of which are integrally formed. The two ends of the upper clamping plate and the two ends of the lower clamping plate are connected through the connecting plates. An empty groove is formed by the inner sides of the two connecting plates and the edge sides of the upper clamping plate and the lower clamping plate. The limiting block is located on the edge of one side of the lower clamping plate, and the limiting block and the connecting plates are located on the same side. According to the plate splicing mortise and tenon joint structure and the clamping piece machining method thereof, the plate splicing firmness is guaranteed, meanwhile, the plate splicing convenience