Humidification tank water replenishing system and fuel cell test equipment

The invention relates to a humidification tank water replenishing system and fuel cell test equipment, the humidification tank water replenishing system comprises a sealed water replenishing tank, the water replenishing tank comprises an air inlet and a water outlet, and deionized water is stored in the water replenishing tank; protective gas is stored in the gas cylinder, and the protective gas is conveyed to the gas inlet of the water replenishing tank at constant pressure, so that the deionized water in the water replenishing tank flows to a humidifying tank from the water outlet of the water replenishing tank after being pressurized. According to the humidification tank water replenishing system and the fuel cell test equipment provided by the invention, constant-pressure water replenishing of the humidification tank can be met at low cost, air can be prevented from being introduced into deionized water, and the safety of the test process is improved. 本发明涉及一种加湿罐补水系统及燃料电池测试设备，加湿罐补水系统包括密封设置的补水箱，所述补水箱包括进气口及出