Two silicon-based alternating copolymers, namely SiHMOXD-1 and SiHMOXD-2, functionalized with an electron-deficient oxadiazole units, have been successfully synthesized through Heck reaction for blue light-emitting materials. The chemical structure and purity of these polymers have been characterized by FT-IR, H-1-NMR and C-13-NMR, gel permeation chromatography, UV-Vis, photoluminescence (PL) and excitation spectroscopies, etc. The SiHMOXD-1 exhibits one strong UV absorption band at 356 nm. With an excitation wavelength of 366 nm, its PL spectrum shows a strong band at 425 nm in the blue region. The SiHMOXD-2 shows one strong UV absorption band at 342 ran. With an excitation wavelength of 352 run, its PL spectra gives two strong bands at 425 and 456 nm in the blue region.