The invention discloses a high-iron intelligent constant-humidity air conditioner, and relates to the technical field of air conditioners and related equipment thereof. The high-iron intelligent constant-humidity air conditioner comprises a water inlet device, a humidity device and a bottom cover, wherein the water inlet device comprises an air inlet and outlet plate of the air conditioner, a water inlet tube, a limiting bin, a bottom tube, an electromagnetic bottom plate, an electromagnetic control button, a water inlet hole and a flow control valve; and the humidity device comprises a water inlet bin, a front stopping frame; a screen plate, a humidity sensor and a water absorbing screen cloth assembly. The high-iron intelligent constant-humidity air conditioner is provided with the water inlet device which can be used with a special container or a mineral water bottle, water is fed into the water inlet tube through the water inlet hole and the bottom tube, after flowing through the water inlet tube and the water inlet bin, the water wets the water absorbing screen cloth assembly arranged in front of the air inlet and outlet plate of the air conditioner to humidify surrounding air, and dryness of air is improved. meanwhile, the humidity sensor is further arranged at the bottom of the water absorbing screen cloth assembly, the flow is adjusted by the flow control valve according to data fed back by the humidity sensor, and the circumstance that passengers do not feel comfortable due to over high humidity is avoided.