Provided is a nasal dilator comprising: two ring-shaped brackets (1) and a connecting band (2), wherein two ends of the connecting band (2) are respectively connected to a ring-shaped bracket (1) in a symmetrical manner, the two ends of the connecting band (2) are both provided with an insertion part (4), the connecting band (2) is inserted into insertion holes (3) on the ring-shaped bracket (1) respectively via the insertion parts (4), and an included angle formed between a central axis of the connecting band (2) and a central axis of the nasal dilator is 45 to 85 degrees. The ring-shaped brackets and the connecting band of the nasal dilator are of an insertion-connection design, so that the ring-shaped brackets located inside the nasal passage can be made from a soft material to avoid stimulus to the nasal cavity, and the connecting band can be made from a material with relative high hardness and relative strong elasticity to enable effective clamping of the nasal septum, thereby preventing the nasal dilator from falling off the nose in use in addition, the connecting band can have a relatively short length, so that stimulus to the nasal passage is reduced and the user will not have a prickling sensation.Linvention concerne un dilatateur nasal comprenant : deux supports en forme danneau (1) et une bande de liaison (2), deux extrémités de la bande de liaison (2) étant respectivement reliées à un support en forme danneau (1) dune manière symétrique, les deux extrémités de la bande de liaison (2) étant toutes les deux pourvues dune partie dinsertion (4), la bande de liaison (2) étant insérée dans des trous dinsertion (3) sur le support en forme danneau (1) respectivement par lintermédiaire des parties dinsertion (4), et un angle inclus formé entre un axe central de la bande de liaison (2) et un axe central du dilatateur nasal étant de 45 à 85 degrés. Les supports en forme danneau et la bande de liaison du dilatateur nasal ont une conception du type insertion-connexio