Highly　efficient　solvent-free　coupling　reaction　of　carbon　dioxide　(CO2)　and　epichlorohydrin　catalyzed　by　meso-tetraphenyl　porphyrin　magnesium　(MgTPP)　in　the　presence　of　triethylamine　as　co-catalysts　is　reported.　As　a　chlorophyll-like　catalyst,　MgTPP　showed　excellent　activity　for　the　coupling　reaction　of　CO2　and　epichlorohydrin　to　chloropropene　carbonate,　in　which　the　turnover　number　could　reach　up　to　9200.　Moreover,　different　factors　including　the　amount　of　catalyst,　reaction　temperature,　pressure　and　time　were　systematically　investigated　and　the　optimal　reaction　conditions　were　obtained　(epichlorohydrin　50　mmol,　MgTPP　5.0x10(-3)　mmol,　triethylamine　6.25x10(-3)　mmol,　140　degrees　C,　1.5　MPa,　8　h).　A　plausible　two-pathway　mechanism　for　the　coupling　reaction　of　CO2　and　epichlorohydrin　is　proposed　to　propound　the　catalysis　of　MgTPP.