The　design　of　bipolar　plates　is　critical　for　improving　the　performance　of　proton　exchange　membrane　fuel　cells　(PEMFCs).　In　this　research,　a　new　additional　outlet　based　on　a　PEMFC＇s　parallel　flow　field　was　proposed,　and　three　different　positions　of　outlet　were　designed　on　the　target　side　of　gas　flowing　in　parallel　channels.　The　results　revealed　that　the　additional　outlets　are　able　to　increase　the　gas　speed　through　channels　near　the　additional　outlets,　which　results　in　a　lower　water　saturation　and　a　more　uniform　distribution　of　oxygen　concentration　at　the　interface　between　the　catalyst　layer　(CL)　and　gas　diffusion　layer　(GDL).　With　the　variation　of　the　outlet　position　in　the　target　side,　it　was　found　that　the　additional　outlet　set　in　the　middle　of　the　target　side　exhibits　the　highest　increase　of　peak　power　density,　namely,　13%.　Furthermore,　the　optimal　position　of　the　additional　outlet　was　proved　to　be　suitable　for　PEMFCs　with　various　active　surface　areas,　indicating　the　universality　of　the　present　results　in　the　study.