Efficient　catalyst　with　low　overpotential　and　small　Tafel　slope　for　oxygen　evolution　reaction　is　the　key　factor　to　improve　overall　efficiency　of　Zn-air　battery.　In　the　present　study,　a　novel　hybrid　catalyst　with　polyaniline　and　amorphous　iron-cobalt-binary　oxide　supporting　on　multiwalled　carbon　nanotubes　is　prepared　via　a　simple　in　situ　method　by　mixing　Fe+,　Co2+,　aniline　and　multiwalled　carbon　nanotubes　together　followed　by　subsequent　borohydride　reduction　with　citrate　as　protective　stabilizer.　The　optimal　sample　exhibits　remarkable　activity　for　oxygen　evolution　reaction　in　0.1　M　KOH　solution,　accompanied　by　a　low　overpotential　of　440　mV　at　a　current　density　of　10　mA　cm(-2),　and　a　small　Tafel　slope　of　55　mV　dec(-1).　Such　catalyst　can　endow　rechargeable　Zn-air　battery　with　a　high　peak　power　density　of　287.4　mW　cm(-2)　and　long-term　cycling　performance　over　100　h　with　high　efficiency　and　stability,　demonstrating　its　promising　feasibility　as　highly　active　electrocatalyst　for　rechargeable　metal-air　batteries.