CO_2 is a critical component of greenhouse gas and also an abundant C1 resource. CO_2 chemistry has attracted more and more attention from the scientific community thanks to global warming. The unique advantages of microporous organic polymers (MOPs), especially the diverse monomers and synthetic routes, easy to introduce specific CO_2-philic functionalities, organic ligands and metal catalytic center within the skeleton, have provided new opportunity for CO_2 capture, activation and utilization. This review will outline the recent research progress on CO_2 adsorption and catalytic conversion by functionalized MOP materials. The MOPs invovled are mainly those functionalized by CO_2-philic groups (e.g. azo, Troger's base, carbazole, triazine, Schiff base, benzimidazole and fluorine atoms) and synthesized directly through chemical coupling reactions, which could realize efficient capture, activation and the subsequent catalytic conversion of CO_2, to produce value-added chemicals such as formic acid, methyl amines and organic carbonates.