Without　pump　to　supply　fuel,　passive　direct　methanol　fuel　cell　is　a　promising　candidate　for　a　potential　portable　power　source.　This　paper　investigate　the　influence　of　temperature　and　cell　placement　angle　on　the　passive　direct　methanol　fuel　cell　performance.　The　results　show:　1)　When　the　working　temperature　of　the　cell　increase　from　45°C　to　82°C,　the　performance　of　the　passive　direct　methanol　deteriorate.　2)　The　placement　angle　affect　the　flow　and　mass　transfer　in　the　cell　and　influence　the　performance　of　the　cell.　When　the　placement　angle　is　great　than　90°,　the　cell　performance　ameliorate.　3)　At　different　temperature,　the　placement　angle　show　different　influence　on　the　cell　performance.