Disclosed are an intelligent tooth jewellery and a usage method thereof, wherein the intelligent tooth jewellery comprises: a tooth jewellery body (11) with a cavity (13), a tester (14) located inside the cavity (13) and used for testing physiological parameters, a battery (15) used by the tester (14), and a trigger switch (16) triggering the tester (14) to start the testing a through-hole (18) is arranged on the tooth jewellery body (11) for the suction tube (17) of the tester (14) to stretch out to the outer side of the tooth jewellery body (11), and a seal cover (19) sealing the through-hole (18) is also arranged there and when the trigger switch (16) starts the tester (14), the seal cover (19) is opened, the suction tube (17) of the tester (14) stretches out to the outer side of the tooth jewellery body (11) through the through-hole (18) to obtain the saliva of a subject, tests the physiological parameters of the saliva, and sends the test results to the peripheral device in communication connection with the tester (14). The above-mentioned intelligent tooth jewellery can intelligently detect the physiological parameters of blood glucose or ethanol content and the like, and at the same time, does not affect the aesthetics of the tooth jewellery, and operation thereof is simple, relieving pain for the user. The intelligent tooth jewellery can be repeatedly used, thereby saving costs.La présente invention concerne un bijou dentaire intelligent et son procédé dutilisation, le bijou dentaire intelligent comprenant : un corps de bijou dentaire (11) avec une cavité (13), un dispositif dessai (14) situé à lintérieur de la cavité (13) et utilisé pour évaluer des paramètres physiologiques, une batterie (15) utilisée par le dispositif dessai (14), et un commutateur de déclenchement (16) déclenchant le dispositif dessai (14) pour démarrer lessai un trou traversant (18) est disposé sur le corps de bijou dentaire (11) pour que le tube daspiration (17) du dispositif dessai (
