The　detailed　dynamic　characteristics　of　direct　methanol　fuel　cells　need　to　be　known　if　they　are　used　for　transportable　power　sources.　The　dynamic　response　of　a　direct　methanol　fuel　cell　to　variable　loading　conditions,　the　effect　of　cell　temperature　and　oxygen　flow　rate　on　the　cell　response,　and　the　cell　response　to　continuously　varying　cell　temperatures　were　examined　experimentally.　The　results　revealed　that　the　cell　responds　rapidly　to　variable　current　cycles　and　to　continuously　varying　cell　temperatures.　The　increasing　rate　of　gradual　loading　significantly　influences　the　dynamic　behavior.　The　effects　of　cell　temperature　and　oxygen　flow　rate　on　the　cell　dynamic　responses　are　considerable,　but　the　cell　voltage　differences　over　the　range　of　cell　temperatures　and　oxygen　flow　rates　are　small　for　gradual　loading.　The　cell　response　value　to　cell　temperature　during　decreasing　temperature　is　lower　than　that　during　increasing　temperature.