Sealed exhibition cabinet

The utility model relates to a display cabinet with a sealing design. The display cabinet comprises a display cabinet main body, a connecting part, an upper cover and a sealing strip, an opening is formed in the upper part of the showcase main body; the lower end of the connecting part is matched with the opening, and a sealing groove is formed in the upper end of the connecting part; the sealing strip is arranged in the sealing groove, and the sealing strip has a preset compression volume ratio; the upper cover and the connecting part are buckled and connected through the sealing groove, and after the whole cover is arranged on the display cabinet body, a sealed space is formed in the display cabinet. The connecting part is arranged on the lower portion of the upper cover, the upper cover with a large size is easy to transport and install, sealing treatment is conducted between the upper cover and the connecting part through the sealing strip in the sealing groove, after the upper cover is buckled, the seali