A kind of necktie is hung shell. It solves the problem that it is more troublesome to tie necktie knot when wearing existing necktie, and it is not easy to shape. It includes installation structure, which is used for the installation and fixation of necktie. The installation structure includes basic segment forming groove (1), and the basic segment forming groove (1) is inwardly bent to form limiting space (2). The beneficial effects of the utility model are that the installation structure can install necktie, and the necktie can be shaped without tying necktie knot when wearing, so that the necktie is convenient to wear and easy to operate. The basic segment forming groove can shape and limit the necktie, which is convenient to use with cloth or leather to form a necktie. The setting of limiting space can contract the end of the necktie, so that the necktie naturally extends to the hanging belt part below the hanging shell to form a "
wine bottle" shape, and the overall image is better. The utility model also has the advantages of simple structure, easy operation, long service life and the like.