Abstract: Poly (p-N, N-dimethylamino azobenzol glycidyl ether), a polyether-aromatic azo polymeric dye, was synthesized from p-N, N-dimethylamino aniline (Ⅰ) following the reactions as given: The characterization of the intermediate (Ⅱ), monomer (Ⅲ) and polymer dye (Ⅳ) were performed by elemental analysis, IR, ¹³C NMR, VIS-spectroscopy, laser light scattering and DSC. The polymer dye studied in this paper is soluble in stronger polar solvents (such as DMF) with M_w = 2.2×10⁴ and soft point 90-95℃. The photosensitive image recording materials, which were made from the polymer dye with vinylidene chloride/methyl acrylate copolymers, were shown to have the image-forming behaviour under UV-irradiation. It is of particular interest that the polymer dyes can be fixed more strongly in the photosensitive layer.