The invention discloses an anti-theft monitoring device for an intelligent building, comprising a protective cover, a camera assembly, a fixed baffle, an upper connecting table and a pallet, wherein the protective cover is internally provided with a camera mounting seat, and the camera assembly is arranged in the camera mounting seat, the left end of the camera assembly is provided with a prism sheet, the upper and lower ends of the concentrating sheet are fixed on the camera mounting seat through a prism sheet base, the camera is disposed on the right side of the concentrating sheet, a storage device is disposed on the right side of the camera and is connected through a data line, the bottom of the camera mounting seat is provided with a support plate and is fixedly connected, support columns are arranged on the left and right sides under the support plate, and the support columns are fixedly connected with the bottom of the protective cover by fastening screws. The anti-theft monitoring device of the invention is structurally simple and reasonable in design, and convenient and quick in operation when using. As the camera module is internally equipped with a voice control switch,the camera and the lighting lamp are off when there is no one in the corridor, which makes the device more energy-saving and environmentally friendly, and can reduce invalid video clips.