Ruddlesden-Popper　(R-P)　perovskite　oxides　have　attracted　much　attention　as　highly　active　and　stable　bifunctional　materials　for　the　oxygen　evolution　reaction　(OER)/oxygen　reduction　reaction　(ORR)　in　alkaline　solutions　due　to　the　nonuse　of　precious　metal　elements.　Herein,　a　triple　(H+,　O2-,　and　electron)　conductive　R-P　perovskite　oxide,　La1.2Sr0.8Ni0.6Fe0.4O4+delta,　was　prepared,　and　the　valence　state　of　transition　metal　cations　and　highly　oxidized　oxygen　(O-/O-2(2-))　in　the　structure　was　tuned　by　a　low-temperature　fluorine　substitution　treatment.　The　homogeneous　distribution　of　the　fluorine　elements　across　the　particles　of　the　R-P　perovskite　oxide　after　its　fluorination　was　confirmed　by　high-resolution　transmission　electron　microscopy　(HRTEM)　images.　By　regulation　of　the　amount　of　highly　oxidative　state　oxygen　species　and　the　valence　state　of　transition　metal　cations　in　the　R-P　perovskite　structure,　the　material　exhibits　a　significant　enhancement　for　both　the　OER　and　ORR　electrocatalytic　activities.　The　fluoridated　La1.2Sr0.8Ni0.6Fe0.4O4+delta　Fy　(LSNF-OF)　achieves　a　low　OER　overpotential　of　308.1　mV　in　a　1　M　KOH　electrolyte　at　a　current　density　of　10　mA　cm(-2).　This　is　superior　to　both　commercial　Co3O4　and　the　pristine　sample　without　fluorination.　The　LSNF-OF　electrode　in　an　aqueous　Zn-air　battery　(ZAB)　exhibits　a　peak　power　density　of　19.15　W　g(-1)　at　a　current　density　of　24　mA　g(-1).　The　low-temperature　trace　fluorination　can　enhance　the　electrocatalytic　efficiency　of　perovskite　oxides.　This　technique　can　be　applied　to　various　types　of　metal　oxides