A series of dendritic multiporphyrin arrays (P(Zn)Tz-nP(FB); n = 2, 4, 8) comprising a triazole-bearing focal zinc porphyrin (P-Zn) with a different number of freebase porphyrin (P-FB) wings has been synthesized, and their photoinduced energy transfer process has been evaluated. UV/vis absorption, emission, and time-resolved fluorescence measurements indicated that efficient excitation energy transfer takes place from the focal P-Zn to P-FB wings in P(Zn)Tz-nP(FB)'s. The triazole-bearing P-Zn effectively formed host-guest complexes with anionic species by means of axial coordination with the aid of multiple C-H hydrogen bonds. By addition of various anionic guests to P(Zn)Tz and P(Zn)Tz-nP(FB)'s, strong bathochromic shifts of P-Zn absorption were observed, indicating the HOMO-LUMO gap (Delta EHOMO-LUMO) of P-Zn decreased by anion binding. Time-resolved fluorescence predominantly takes place from P-Zn in P(Zn)Tz-nP(FB)'s after the addition of CN-. This change was reversible because a treatment with a silver strip to remove CN- fully recovered the original energy transfer process from the focal P-Zn to P-FB wings. measurements revealed that the fluorescence emission