Metal double-pole plate-based hydrogen power supply

The invention provides a metal double-pole plate-based hydrogen power supply, which comprises a metal double-pole plate fuel cell, wherein a power supply output end of the metal double-pole plate fuel cell is connected with a draught fan; and the draught fan is arranged at one side of an anode runner of the metal double-pole plate fuel cell, and is used for enabling air to pass through an anode of the fuel cell in a forced convection manner and supplying reaction air and cooling air required for power generation of the fuel cell, so that the structure is simplified; the overall gross of the metal double-pole plate fuel cell is reduced to improve the energy density; a power supply system is high in energy density and specific energy, which can reach over 650W.h/L and 700W.h/kg respectively; the power supply system is compact in structure, efficient, reliable, and long in lifetime; and the lifetime can reach over 3,000 hours.