Exploring　the　application　potentials　of　metal-organic　frameworks(MOFs)　in　the　field　of　light　hydrocarbons　storage　and　separation　is　of　great　significance　for　solving　the　critical　energy　problem.　However,　designing　porous　materials　with　efficient　separation　capacity　is　still　a　challenging　task.　In　this　work,　we　synthesized　a　cage-based　porous　materiel(FJI-H32)　with　a　large　surface　area.　After　activation,　FJI-H32　exhibits　the　feature　of　high　C2H2　storage　capacity(113　cm(3)/g)　and　promising　C2H2/CO2　separation　ability　at　298　K　and　under　100　kPa.　More　importantly,　the　C2H2/CO2　separation　was　verified　by　actual　breakthrough　experiments.