The invention relates to a smart mirror box. The smart mirror box comprises a display device, the display device comprises a display screen and one-way perspective glass, the one-way perspective glassfits the display screen, one side of the one-way perspective glass is arranged to be a mirror surface, the other opposite side of the one-way perspective glass is arranged to be a reflecting surface,the reflecting surface of the one-way perspective glass is close to the display screen, and the mirror surface of the one-way perspective glass is away from the display screen. When the display screen is turned on, a user can normally watch a video of the display screen through the one-way perspective glass; when the display screen is turned off, the one-way perspective glass can serve as a mirror; the reflecting surface of the one-way perspective glass is arranged at one side of the display screen and can serve as a shell for protecting the display screen against scratching and the like. Thesmart mirror box can serve as a smart display screen installed in various mirror cabinet doors, meet increasing information needs of people, enrich the daily life of people and the like.