To　accelerate　the　commercial　application　of　rechargeable　aqueous　Zn-air　batteries,　it　is　essential　to　develop　effective　catalysts　for　oxygen　evolution　reaction　(OER).　This　work　reports　a　novel　nanohybrid　catalyst　comprising　amorphous　B　doped　Fe-Ni　bimetal　hydroxide　nano-sheets　supported　on　multiwalled　carbon　nano　-tubes　for　high-efficiency　Zn-air　batteries,　which　was　synthesized　via　a　facile　ultrasonic-assisted　BH4-　fast　reduction　reaction.　The　as-constructed　nano-complex　with　optimal　composition　exhibited　outstanding　activity　and　stability　for　the　OER　process,　with　an　overpotential　of　219.43　mV　for　10　mA　cm-2　and　a　Tafel　slope　of　43.1　mV　dec-　1.　A　fabricated　Zn-air　battery　delivered　both　excellent　energy　efficiency　and　high　cycling　stability,　exhibiting　a　peak　power　density　of　343.7　mW　cm-2　and　a　favorable　stability　of　over　200　h.　The　enhanced　battery　performance　demonstrates　the　nanohybrid　to　be　a　promising　candidate　catalyst　for　Zn-air　batteries　with　low-cost,　high　efficiency　and　long-term　stability.