As　a　result　of　the　limited　air　cooling　capacity,　the　heat　dissipation　problem　of　air-cooled　proton　exchange　membrane　fuel　cells　(PEMFC)　may　limit　the　increase　in　power　generation.　In　this　research,　the　high-efficiency　heat　transfer　element　micro　heat　pipe　array　(MHPA)　is　integrated　into　the　bipolar　plate,　and　it　is　applied　to　the　thermal　management　of　PEMFC　to　realize　the　separation　of　reaction　air　and　cooling　air.　A　MHPA-PEMFC　comprising　50　single　cells　is　designed,　and　a　series　of　comparative　experimental　studies　are　conducted.　Results　show　that　MHPA　effectively　improves　the　temperature　distribution　inside　PEMFC.　Compared　with　traditional　PEMFC,　the　average　temperature,　maximum　temperature　difference,　and　maximum　Index　of　Uniform　Temperature　of　MHPA-PEMFC　are　reduced　by　11.58　?,　5.10　?　and　0.97　?,　respectively.　When　the　reaction　air　flow　rate　is　160.8　m(3)/h,　the　maximum　output　power　is　197.3　W　higher,　and　the　mass　power　density　and　volume　power　density　are　increased　by　12.2%　and　9.5%,　respectively.　The　heat　dissipation　of　MHPA＇s　cooling　channel　can　account　for　up　to　50.5%　of　the　theoretical　heat　production,　but　the　proportion　decreases　with　the　increase　in　reaction　air　flow.　The　results　provided　a　basis　for　the　application　of　MHPA　to　PEMFC　thermal　management.