▎ 摘　　要

NOVELTY - The device comprises a strong magnetic lock fixed on a wrist belt buckle. A first gas tank is fixed in a bottom shell for storing liquid carbon dioxide. A second gas tank is fixed in the bottom shell for storing liquid carbon dioxide. A top opening valve is provided with a valve body that is connected with a graphene latex airbag and the second air tank. A thimble is fixed in the valve body. A sensing module is provided with an acceleration sensor that is electrically connected with a control module, a heart rate sensor, a blood oxygen sensor, a liquid sensor, and a power supply. USE - Drowning-proof wrist-wearing device for a child. ADVANTAGE - Device is easy to disassemble by a child. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the drowning-proof wrist-wearing device.