A smart wearable device system includes at least two wearable devices having a health parameter test module, an anti-lost terminal module and a communication interface and a smart control device having a health parameter control module, an anti-lost control module, a display screen and a communication interface. Each wearable device is wirelessly connected to the smart control device, and every two wearable devices are wirelessly connected to each other. The health parameter test module transmits physical health parameter information to the smart control device, the health parameter control module performs computational processing, stores and sends image information that reflects body health conditions, and the display screen displays the image information. The anti-lost terminal module has a location and time feedback module, and the anti-lost control module has parameter setting module and a location and time receiving module. The system can monitor physical health and prevent persons from getting lost outside.
