Disclosed is a wearable device which includes a tape-like fabric body, at least one electrically conductive unit, at least one electric signal detection unit, and a data transmission unit. The electric signal detection unit and the data transmission unit are arranged on two opposite surfaces of the tape-like fabric body, and are electrically connected to each other by the electrically conductive unit. The electric signal detection unit includes a sensing portion and a connection portion, wherein the sensing portion is configured to come in contact with a body surface of a living body to detect its physiological signals, and the connection portion is configured to transmit the physiological signals to the data transmission unit. At least one of the tape-like fabric body and the sensing portion includes a heat accumulating fiber for blocking heat dissipated from the body surface of the living body to increase detection efficiency.
