The invention provides an automatic clothes hanger driving device which comprises a driving mechanism and a limiting mechanism. The driving mechanism is used for controlling a pull rope to stretch outor draw back, the limiting mechanism is installed on the driving mechanism and is provided with a pair of static contacts, a pair of dynamic contacts and a swing wheel, the dynamic contacts are installed on the swing wheel in a manner that the two edges can be adjusted, the swing wheel is rotationally connected to the driving mechanism, the static contacts are electrically connected to the driving mechanism, and when one movable contact rotates along with the swing wheel to touch and press the adjacent static contact, the driving mechanism stops running. The pair of movable contacts with thehigh activity are used for achieving all-dimensional adjustment of the limiting angle of the driving device, the working efficiency is improved, and internal production assembly and part replacement are facilitated.