For give a direct methanol fuel cell which secures the fuel supply to the
catalyst layer, reliably discharge generated carbon dioxide gas, and has
excellent electricity generation ability, at least a portion of the anode
side flow path is divided by a film having water-repellency and gas
permeability to a first flow path portion positioned at the membrane
electrode assembly side and a second flow path portion positioned at the
bottom side of the anode side flow path where a fuel mainly flows in the
first flow path portion and carbon dioxide mainly flows in the second
flow path portion.