High-intensity　vibration　conditions　may　adversely　affect　water　transport　within　proton　exchange　membrane　fuel　cells.　Optimization　of　structural　parameters　as　an　effective　approach　to　improve　water　transport　inside　gas　diffusion　layers.　In　this　study,　the　impact　of　various　structural　characteristics　of　the　gas　diffusion　layers　on　water　transport　under　high-intensity　vibration　conditions　is　presented　for　the　first　time,　the　optimal　combination　of　structural　properties　for　these　conditions　is　proposed.　The　results　indicate　that　vibration　exacerbates　the　localized　agglomeration　of　liquid　water　within　the　gas　diffusion　layer,　which　leads　to　impeded　gas　transport　and,　consequently,　reduced　cell　performance.　The　high　hydrophobicity　and　large　pore　size　structure,　although　promoting　water　transport,　further　exacerbated　the　substantial　increase　in　water　content　under　vibration　conditions,　reaching　up　to　103　%.　A　combination　of　moderate　porosity,　moderate　hydrophobicity,　and　minimal　thickness　represents　the　optimal　structural　characteristics　for　mitigating　the　effects　of　vibration　and　ensuring　efficient　water　transport.