The invention discloses a dressing room box with an automatic cleaning function. The dressing room box comprises a box body with an internal part for providing a private space; the box body is provided with a door through which a person can pass in and out of the private space; the door is provided with an intelligent lock; the box body is internally provided with a mirror and a dressing table; the dressing table is provided with a cosmetic placement area, and the cosmetic placement area is provided with a cosmetic locking device; the dressing table also comprises a transparent cosmetic protection cover and a driving device; the cosmetic protection cover is arranged on the cosmetic placement area; the driving device is used for driving the cosmetic protection cover to open or close; the dressing room box also comprises a microprocessor; the microprocessor is connected with equipment, needing to be controlled, of the dressing room box; the cosmetic locking device is provided with a sterilization device used for sterilizing the cosmetic placement area; the sterilization device is connected with the microprocessor. The dressing room box, which is provided by the invention and has theautomatic cleaning function, is capable of performing automatic cleaning after being used, so that the automatic management of the dressing room box is improved, and uses can obtain better usage experience.