Abstract: Three novel π-π conjugated one dimensional linear coordination polymers, ［(ZnTMPP)LBD］, ［(ZnTMPP)LBA-LBD］ and ［(ZnTMPP)LBA］ were synthesized using Zn(Ⅱ) tera-(4-methylphenyl) porphyrin (ZnTMPP) as axial ligand, and bipyridine, benzidine and Schiff base-4,4-bis(pyridine-2-methyleneamino) biphenyl as bridging ligand, respectively. These coordination polymers were characterized by FT-IR, 1H-NMR, UV-Vis NIR and XRD. The effects of bridging ligand length and structure on the optical, electrochemical properties and crystalline of coordination polymers were investigated. Results showed that the coordination polymer bridged by the longest ［(ZnTMPP)LBA-LBD］ bridging ligand had broadband adsorption in the range of 300—1 100 nm, and a redox reaction could occur at a lower potential. The energy gap between the full band and the empty band was 0.19 eV. The coordination polymers which bridged by bipyridine and benzidine had semi crystallinity.