The utility model relates to the lamp technical field, in particular to a retractable and adjustable lampshade bracket, comprising a foot part connected with a lamp body and a top part connected with a lampshade. The foot part and the top part can be connected through a retractable and adjustable regulating pipe, and the regulating pipe comprises a big pipe and a small pipe. The big pipe is covered around the small pipe, wherein, the small pipe is provided with a small hole, and the small hole is provided with elastic fixture blocks; a plurality of clamping holes through which the elastic fixture blocks can pass are correspondingly arranged on the big pipe. After the utility model adopts the structure, the height of the whole lampshade bracket can be changed by regulating the length of the regulating pipe. Therefore, the utility model can be adapted to the needs of lampshades in various sizes, which is convenient to users to replace lampshades.