An in-cell touch display panel and an electronic device are provided. The in-cell touch display panel includes a plurality of photo spacers (PSs) configured to stand on a protection layer along a direction in which dummy lines extend. The dummy lines are disconnected in standing locations of the PSs. The PSs are arrange to avoid a metallic wiring layer, and the standing locations of PSs are flatter. As such, supporting height of the PSs are the same, and a cell thickness is made uniform. The dark stripe issue caused by the configuration of the PSs may be avoided, and so does the un-recoverable Push Mura, water ripple, and bright and dark spots. At the same time, the surface pressure and the display performance of the in-cell touch display panel may be enhanced.