The invention provides a high-definition rear-projecting ball-shaped curtain which comprises a transmission layer, an imaging layer and a scattering layer, wherein the transmission layer, the imaging layer and the scattering layer are sequentially connected in a pressing bonding mode and combined through a ball-shaped mould, and the scattering layer is an irregular particle scattering layer. According to the high-definition rear-projecting ball-shaped curtain, the gain, the contrast ratio and definition of the high-definition rear-projecting ball-shaped curtain are effectively improved, images are made to be clearer and more gorgeous, and the solar effect is effectively restrained.