A touch projection screen including a substrate, touch layers, and a reflective projection film is provided. The touch layers and the reflective projection film are sequentially disposed on the substrate, and the touch layers are located between the substrate and the reflective projection film. Each of the touch layers comprises a base layer and an electrode pattern disposed on the base layer. Each electrode pattern includes a plurality of electrode line sets. Each electrode line set includes a plurality of electrode lines and a plurality of electrode segments. The electrode lines are arranged to be parallel to each other. An included angle between each of the electrode segments and one of the electrode lines is an acute angle. Two ends of each electrode segment are connected to the corresponding electrode lines. In addition, a touch projection system including the touch projection screen and a projection device is provided.