High-flow oxygen therapy instrument humidifying device

The utility model relates to the field of medical instruments, and discloses a high-flow oxygen therapy instrument humidifying device which comprises an infusion bottle, a leather strap breakage preventing device, an infusion leather strap, a humidifying tank, a water level control device, an oxygen therapy instrument control host and a heating breathing pipeline. A leather strap anti-fracture device is arranged on the infusion leather strap close to the needle head, and the other end of the infusion leather strap is detachably connected with a liquid inlet of the humidifying tank; the sterilization injection water is directly injected from a liquid inlet of the humidifying tank or flows into the humidifying tank through an infusion strap; a heating panel is arranged at the bottom of the humidifying tank, the humidifying tank is connected with a water level control device, and the water level control device enables the infusion strap to circulate when the water level in the humidifying tank is lower than a se