5Metal-organic coordination polymers (MOCPs) are well known organic-inorganic hybrids with infinite structures consisting of metal ions/clusters and organic ligands linked through coordination interactions. MOCPs can be constructed from one or more than one organic bridging ligands (mixed-ligands) and different metal ions. The previous reports prove the fact that the nature of organic ligands and metal ions dominates the final structures as well as properties of the MOCPs in a certain way. Therefore, we focus 10 on discussing the cobalt(II)/copper(II) coordination polymers constructed from the mixed-ligands of polycarboxylates and N-donor ligands, which may possess potential applications in the fields of electrochemistry, electrocatalysis, magnetism and photocatalysis. In this review, we summarize some typical Co(II)/Cu(II) MOCPs based on the mixed bridging organic ligands, aimed to discuss their versatile synthesis methods, topologies and structural influence factors, as well as their tunable properties. 15 All of these aspects are highlighted in this review, which seeks to guide further investigations of cobalt(II)/copper(II) coordination polymers. 65 shown that bis(imidazole)/bis(triazole)/bis(pyridyl) derivatives and polycarboxylate ligands represent the most reliable and typical building blocks which can be jointly applied to synthesize a wide range of desired coordination networks. 13-16 A choice of such connectors in coordination assembly can be rationalized 70 based on the following considerations: (i) the neutral N-donor ligands normally bind to the cobalt(II)/copper(II) ions as the rodlike bidentate tectons; (ii) the polycarboxylate ligands can not