Proton　exchange　membrane　fuel　cells　are　subjected　to　severe　vibration　in　aerospace　applications.　Understanding　the　droplet　transport　characteristics　in　the　flow　channelunder　vibration　conditions　is　essential　for　improving　cell　performance.　However,　the　underlying　patterns　and　mechanisms　of　the　vibration　effects　on　cell　performance　and　its　internal　water　transport　remain　unclear,　and　there　is　a　lack　of　improvement　methods　for　drainage　under　vibration　conditions.　This　study　experimentally　investigates　the　effect　of　vibration　on　cell　performance.　Experimental　results　indicate　that　vibration　predominantly　affects　cell　performance　through　its　modulation　of　water　transport.　Therefore,　the　droplet　dynamic　behavior　in　the　flow　channel　is　further　studied　using　the　volume　of　fluid　method.　The　results　indicate　that　vibrations　can　enhance　the　average　performance　of　the　fuel　cells,　with　the　largest　increase　of　8.30　%.　This　is　attributed　to　vibrations　promoting　the　detachment　of　droplets　from　the　gas　diffusion　layer　surface　and　reducing　the　water　coverage　ratio　on　said　surface.　Under　conditions　of　low　gas　velocity,　high　surface　hydrophobicity,　and　large　droplet　size,　droplets　exhibited　oscillatory　and　jumping　behavior　in　the　flow　channel　due　to　vibration,　resulting　in　the　largest　53.5　%　increase　in　peak　water　coverage　ratio　on　the　gas　diffusion　layer　surface　compared　to　no-vibration　conditions.　Furthermore,　enhancing　the　hydrophobicity　of　the　gas　diffusion　layer　and　the　hydrophilicity　of　the　channel　walls　promotes　droplet　detachment　and　discharge　compared　to　no-vibration,　as　well　as　contributing　to　the　improvement　of　vibration　effects　on　the　drainage　process.