A smart wearable device system comprising at least two wearable devices (1) and a smart control device (2), a wearable device (1) being provided with a health parameter test module (11), a missing-person-prevention terminal module (12), and a communication interface (13) the smart control device (2) is provided with a health parameter control module (21), a missing-person-prevention control module (22), a display screen (23), and a communications interface (24) each wearable device (1) is wirelessly connected to the smart control device (2), and every two wearable devices (1) are wirelessly connected to each other said health parameter test module (11) transmits physical health parameter information to the smart control device (2), then the health parameter control module (21) performs computational processing, stores and emits image information in response to the health conditions of the body, and displays the information by means of a display screen (23) said missing-person-prevention terminal module (12) is provided with a location and time feedback module (121), and said missing-person-prevention control module (22) is provided with a parameter setting module (221) and a location and time receiving module (222). The present wearable device system satisfies several persons requirements for monitoring of physical health, and can prevent a person from going missing when several people go out together.Linvention concerne un système intelligent de dispositif portable comprenant au moins deux dispositifs portables (1) et un dispositif intelligent de commande (2), un dispositif portable (1) étant équipé dun module de test de paramètre de santé (11), dun module de terminal de prévention de personne manquante (12) et dune interface de communication (13) le dispositif intelligent de commande (2) est équipé dun module de commande de paramètre de santé (21), dun module de commande de prévention de personne manquante (22), dun écran daffichage (23) et dune interface de commu
