The invention discloses a self-adjustment type clothes hanger. The self-adjustment type clothes hanger comprises a hook, a rotary device, a supporting body and a stopping device, wherein the hook comprises a hook body, a rod body and a self-locking component, the rotary device comprises a spring barrel, a bevel gear and a hollow cylinder from top to bottom in sequence, and a spring gear of the spring barrel is meshed with the bevel gear to drive the bevel gear to rotate in the horizontal direction so as to drive the cylinder to rotate in the horizontal direction; the supporting body comprises two clothes hanger arms, one end of the supporting body is fixedly connected with the cylinder, and a pair of telescopic rods is connected to the position, close to each of the two ends, of each clothes hanger arm in a rotary mode; the stopping device comprises a photosensitive element, a horizontal disc and a controller. A spring driving device drives the clothes hanger arms to rotate so as to drive clothes to rotate, and the clothes airing direction can be adjusted in time according to illumination intensity detected by the photosensitive element so as to guarantee that clothes are exposed to the sun by the maximum area. The self-adjustment type clothes hanger improves clothes airing efficiency and has the advantages of being simple in structure and high in practicality.