Anti-theft display cabinet

The utility model discloses an anti-theft display cabinet, which relates to the field of display cabinets, and comprises a base, the top of the base is connected with a display stand, the top of the display stand is connected with a glass cover, the rear side of the glass cover is provided with an opening, sliding doors are arranged at the opening, and the surfaces of the two sliding doors are provided with first lock catches. A first groove is formed in the rear side of the display stand, and an alarm assembly is arranged in the first groove. According to the display stand, a displayed article is placed on the ejector rod, the transverse plate is locked with the display stand through the second lock catch in the non-display time, at the moment, the insertion rod is moved out of the second insertion hole in the ejector rod, if the article displayed on the ejector rod is taken down, the first spring pushes the ejector rod, the ejector rod pulls the first electrode plate, and the first electrode plate is insert