Fuel cell hydrothermal management system

The utility model relates to a hydrothermal management system of a fuel cell. The system comprises a fuel cell, a water pump and a storage water tank, the fuel cell comprises two water flowing holes; the two water flowing holes are respectively communicated with the water storage tank; one of the water flowing holes is a first water flowing hole; the first drain hole communicates with the storage water tank through a water pump; the horizontal plane where the lowest point of the stack in the fuel cell is located is a reference plane; the volume of the part, above the reference surface, of the fuel cell is a first volume; at least one of the two drain holes is lower than the datum plane, at least one part of the water storage tank is lower than the datum plane, the drain holes of the water storage tank are lower than the datum plane, the volume of the part, lower than the datum plane, of the water storage tank is a second volume, and the second volume is not smaller than the first volume. According to the tech