Fuel cell temperature control method and system, fuel cell and storage medium

The invention relates to the technical field of fuel cells, in particular to a fuel cell temperature control method and system, a fuel cell and a storage medium, and the method comprises the following steps: judging whether the water temperature of an electric pile reaches a preset temperature, and if not, closing a thermostat; if yes, the thermostat is adjusted according to the difference value between the inlet temperature and the inlet target value, the difference value between the outlet temperature and the outlet target temperature and the predicted time when the inlet temperature and the outlet temperature exceed the target temperature; according to the invention, through the mixing process of the large and small circulation loops, when the thermostat adjusts the water temperature at the inlet of the stack and the water temperature at the outlet of the stack, the water temperature at the inlet and the water temperature at the outlet are not overheated, so that the fuel cell can continue to operate and t