The invention discloses a flow channel structure of a vaporization chamber of a methanol fuel cell, and belongs to the technical field of methanol fuel cells. According to the technical scheme, the flow channel structure of the vaporization chamber of the methanol fuel cell comprises an upper cover plate and a lower cover plate, wherein a U-shaped flow channel is arranged in the lower cover plate; a methanol water inlet and a gas outlet are arranged in two ends of the U-shaped flow channel respectively; a partition plate is arranged in the middle of the U-shaped flow channel; an inlet of the U-shaped flow channel is connected with a methanol water inlet pipe; and the upper cover plate and the lower cover plate are provided with heating holes for placing electric heating rods. According to the flow channel structure of the vaporization chamber of the methanol fuel cell, methanol water is quickly vaporized to shorten the startup time of the methanol fuel cell.