The present invention discloses a wearable device for a vest-shaped low frequency massaging device, which comprises a wearing body (10), a massaging body (20), a grounding terminal (30), and an attaching/detaching body (40). The wearing body (10) includes: a back adhering portion (11) coming into close contact with a back of a user； a first shoulder hanger portion (13) extending from one side of both upper portions of the back adhering portion (11) and having a first shoulder insertion portion (12) hung on one side shoulder of the user and having the one side shoulder of the user inserted thereinto； a second shoulder hanger portion (15) extending from the other side of both upper portions of the back adhering portion (11) to face the first shoulder hanger portion (13) and having a second shoulder insertion portion (14) hung on the other side shoulder of the user and having the other side shoulder of the user inserted thereinto； a first fixing portion (17) disposed on a front surface of the first shoulder hanger portion (13) while extending from one side of a lower portion of the back adhering portion (11), and having a first fastening portion (16) on one end thereof； and a second fixing portion (19) disposed on a front surface of the second shoulder hanger portion (15) while extending from the other side of the lower portion of the back adhering portion (11), and having a second fastening portion (18) on the other end. The massaging body (20) is attached to the first shoulder hanger portion (13) and the second shoulder hanger portion (15) of the wearing body (10), and has an outer skin (21) made of a current carrying yarn and an inner skin (22) made of a span yarn wherein the outer and inner skins are formed by knitting. The grounding terminal (30) is electrically connected with the outer skin (21) of the massaging body (20) and brought into contact with a grounding portion (102) of a low frequency massaging device (101). The attaching/detaching body (40) attaches o
