Manganese　and　nitrogen　co-doped　porous　carbon　(Mn-N-C)　are　proposed　as　one　of　the　most　up-and-coming　non-precious　metal　electrocatalysts　to　substitute　Pt-based　in　the　oxygen　reduction　reaction　(ORR).　Herein,　we　chose　metal　triazole　frameworks　as　carbon　substrate　with　hierarchical　porosity　for　trapping　and　anchoring　Mn-containing　gaseous　species　by　a　mild　one-step　pyrolysis　method.　The　optimized　Mn-N-C　electrocatalyst　with　a　large　metal　content　of　1.71　wt%　and　a　volume　ratio　of　0.86　mesopores　pore　delivers　a　superior　ORR　activity　with　a　half-wave　potential　(E　(1/2))　of　0.92　V　in　0.1　M　KOH　and　0.78　V　in　0.1　M　HClO4.　Moreover,　the　modified　Mn-N-C　catalyst　showed　superior　potential　cyclic　stability.　The　E　(1/2)　remained　unchanged　in　0.1　M　KOH　and　only　lost　6　mV　in　0.1　M　HClO4　after　5000　cycles.　When　applied　as　the　cathode　catalyst　in　Zn-air　battery,　it　exhibited　a　maximum　peak　power　density　of　176　mW　cm(-2),　demonstrating　great　potential　as　a　usable　ORR　catalyst　in　practical　devices.