An LED splicing display panel includes at least one repeat unit. Each of the repeat unit includes four sub-LED display panels spliced to each other. Each of the sub-LED display panels includes a display region and fan-out regions. A plurality of slits are between two adjacent sub-LED display panels. The two adjacent sub-LED display panels share the plurality of fan-out regions. The plurality of sub-pixels in the four display regions include a plurality of irregular-shaped sub-pixels and a plurality of regular-shaped sub-pixels. Each of the plurality of irregular-shaped sub-pixels abuts to the corresponding fan-out region.