The utility model relates to a sign is worn to the bracelet, specifically relates to an old person's bracelet, including bracelet body and bracelet area, there are buckle and buckle hole on the bracelet area, bracelet body on have a label bag, bracelet body has a cavity, the inside is equipped with battery, position tracking orientation module, data storage module and metal supporter there is a USB interface bracelet body side, the bracelet area form by pressing from both sides one deck negative ion silica -gel layer in the middle of the two silica gel layers. It conveniently wears to be one kind to can trail the old person's bracelet of location.