3D　flow　field　design　usually　improves　the　performance　of　proton　exchange　membrane　fuel　cell　(PEMFC)　with　the　penalty　of　a　dramatically　increasing　pressure　drop.　To　surmount　this　issue,　a　novel　windward　bend　flow　field　that　exhibits　superior　mass　transfer　performance　under　a　constant　pumping　power　is　proposed　in　this　study.　The　performance　of　PEMFC　with　windward　bend　flow　field　is　numerically　compared　with　two　canonical　3D　flow　fields,　namely　3D　wave　flow　field　and　cutting　cylindrical　baffles　flow　field.　Results　demonstrated　that　compared　with　two　canonical　3D　flow　fields,　windward　bend　flow　field　gets　a　better　water　management　capability.　The　optimal　distance,　tilt　angle　and　direction　for　the　windward　bend　structure　embedded　in　channel　are　2.0　mm,　15　degrees　(at　the　direction　of　the　front　section　of　the　windward　bend　structure　tilts　towards　membrane　electrode　assembly).　Furthermore,　the　average　enhancement　rate　of　the　maximum　power　density　of　PEMFC　with　optimal　windward　bend　flow　field　is　7.6　%　and　12.4　%　compared　with　cutting　cylindrical　baffles　flow　field　and　3D　wave　flow　field　owing　to　the　larger　Sherwood　number　of　optimal　windward　bend　flow　field　under　the　specified　pumping　power　range.