Two kinds of lanthanide coordination polymers with different three-dimensional(3D)structures were synthesized by solvent evaporation method,and their crystal structures,thermal stabilities and luminescent properties have been measured and compared.X-ray single-crystal diffraction analysis reveal that Ln(L1)3 stretch to a 3D rigid network by means of bridging Na-atom,and Ln(L2)3 exhibit 3D supramolecular structure based on π-π stacking and other weak interactions.