Stability　has　always　been　the　main　limiting　problem　for　developing　oxygen　reduction　reaction　(ORR)　catalysts　practically.　A　PdZnBi　alloy　ORR　catalyst　with　an　interlayer-riveted　carbon　shell　encapsulation　structure　is　synthesized　using　small　molecule　in　situ　confinement　effects.　Meanwhile,　the　reaction　molecular　dynamics　(RMD)　method　presents　and　reveals　the　mechanism　of　acetic　acid　molecules　forming　a　uniform　thin　carbon　layer　on　the　metal　surface　during　heat　treatment.　The　riveted　porous　carbon　shell　structure　allows　rapid　electron　and　mass　transfer　and　acts　as　a　protective　layer　that　limits　alloy　surface　oxidation　and　maintains　the　initial　catalyst　structure.　The　catalyst　exhibits　excellent　ORR　durability,　with　an　initial　mass　activity　(MA)　of　94%　after　60　000　cycles　of　accelerated　durability　tests　(ADTs),　and　is　applied　to　zinc-air　batteries　and　exhibits　high　current　density　discharge　stability　(＞100　h,　100　mA　cm-2).