FUEL CELL MEMBRANE HUMIDIFIER

Provided is a fuel cell membrane humidifier for which convenience of assembly may be improved because the fuel cell membrane humidifier may be directly mounted on a structure of a transportation means such as a vehicle, a ship, or an airplane or a generator system of a building without additional equipment and manufacturing convenience may be improved because mounting requirements of various clients may be met. The fuel cell membrane humidifier includes a humidification module configured to perform moisture exchange between a first fluid and a second fluid, and including a mid-case, a second fluid inlet through which the second fluid is introduced into the mid-case, a second fluid outlet through which the second fluid is discharged to outside, and at least one cartridge located in the mid-case, caps formed on both ends of the humidification module, and a position-variable mount formed to be position-variable on the humidification module and configured to mount the humidification module on a mount target structure.