To　explore　the　regulation　of　photoelectric　properties　of　zinc　porphyrin　dyes　with　heterocyclopentadiene　as　pi-bridge,　six　new　zinc　porphyrin　dyes　were　designed　by　introducing　heterocyclopentadiene　with　different　heteroatoms　as　the　pi-bridge　based　on　the　reference　dye　YD2-o-C8.　The　frontier　molecular　orbital　energy　levels,　absorption　spectra,　and　the　hole-electron　separation　characteristics　of　the　designed　dyes　were　investigated　using　the　density　functional　theory　(DFT)　and　time-dependent　density　functional　theory　(TD-DFT)　methods.　The　results　show　that　compared　with　the　reference　dye　YD2-o-C8,　the　introduction　of　heterocyclopentadiene　in　pi-bridge　can　improve　the　photoelectric　performance　of　dyes.　The　photoelectric　properties　of　porphyrin　dyes　can　be　regulated　by　changing　heteroatoms.　Further　analysis　on　the　relationship　between　the　properties　of　heterocyclopentadienes　and　the　photoelectric　performance　of　the　porphyrin　dyes　shows　that　the　lowest　unoccupied　molecular　orbital　energy　level　of　heterocyclopentadienes　has　a　good　linear　relationship　with　the　photoelectric　properties　of　the　designed　porphyrin　dyes.　The　stronger　electron　receiving　ability　of　heterocyclopentadiene　can　lead　to　the　better　performance　of　the　porphyrin　dye.　The　silicon-heterocyclopentadiene　is　of　the　strongest　electron　receiving　ability,　and　the　corresponding　porphyrin　dye　has　the　widest　absorption　spectra　and　the　strongest　intramolecular　charge　transfer　ability.