An in-cell touch display screen and a display device are provided. The in-cell touch display screen comprises an upper substrate and a lower substrate that are cell-assembled, and a plurality of first touch electrodes and a plurality of second touch electrodes that are disposed on the upper substrate and/or the lower substrate without contacting each other; the display screen comprises an image display area, a static-electricity shield layer is disposed on a light emitting side of the upper substrate, and the static-electricity shield layer comprises a plurality of hollowed-out areas corresponding to the image display area. The in-cell touch display screen can resolve a problem that the static-electricity shield layer of a common in-cell touch display screen may shield touch signals.