Writable projection screen with wide viewing angle

The utility model relates to a writable projection screen with a wide viewing angle, comprising a developing layer and a protecting layer, wherein the developing layer is a white rubber film and has luminous reflectance being greater than or equal to 80%; the protecting layer is coated at the surface of the developing layer and provided with resin matrix and a plurality of scattering particles interspersed in the resin matrix; and the developing layer and the protecting layer are respectively provided with a flat surface, so that when in writing on the projection screen, the writing is smoother, and the writable projection screen is easy to wipe and clean after writing and avoids influence on the projection quality. The protecting layer has functions of scratch resistance, fouling resistance and writability, and can resist glare and avoid light hot point caused in projection.