The invention provides a metal/air battery system, which comprises a metal/air battery pack provided with an electrolytic solution injection port and an electrolytic solution outlet, a liquid pump anda liquid storage unit, wherein the liquid inlet of the liquid pump is connected to the liquid storage unit, the liquid outlet of the liquid pump is connected to the electrolytic solution injection port of the metal/air battery pack, the electrolytic solution outlet of the metal/air battery pack is connected to the liquid storage unit to form a closed circuit, the liquid storage unit is provided with a heat dissipating component, the liquid storage unit is a container, the heat dissipating component comprises more than N groups of heat dissipating fins, N is a natural number of greater than orequal to 1, each group of the heat dissipating fins comprises one heat dissipating fin connected to the outer wall surface of the container or more than two heat dissipating fins arranged in parallelat intervals, and the fixed connection is that one end of the heat dissipating fin and the liquid storage unit outer wall are integrally fixed, and other end of the heat dissipating fin and the fixedliquid storage unit outer wall surface form a 10-90 DEG angle.