A clothes airing ladder includes a clothes hanger, ladder supports, and outer supports; one side end of the clothes airing ladder is fixedly connected to the top ends of the ladder supports; the upper ends of the outer supports are movably connected to the ladder supports; a plurality of airing rods are arranged on a frame of the clothes hanger; pedal rods are successively fixed on the ladder supports from top to bottom; and support fixing devices are arranged between the ladder supports and the outer supports. The clothes airing ladder can be used as a clothes airing hanger and a household small ladder, has multiple functions, occupies less home space, can save materials, and can meet the demands; when clothes are hanged on the clothes airing ladder, the outer supports are unfolded, the outer supports and the ladder supports are fixed through the support fixing devices, and in this time, the outer supports and the ladder supports can support the clothes airing hanger and allow the clothes airing hanger to be in a horizontal state, and in this way, the clothes can be hanged on the clothes airing rods; and when the clothes airing ladder is used as the small ladder, the outer supports are folded, the clothes airing hanger and the ladder supports form a fixing support, and a user can tread on the pedal rods to go upward.