An ornamental strap with charging and data transmitting function is disclosed, The ornamental strap comprises: a data cable; a base; a data connector rotatably connected to the base; and a USB connector; wherein a positioning groove is provided between the data connector and the base; the data cable has one end connected to the data connector, and the other end bent and turned back to connect with the USB connector after passing through the positioning groove. Therefore, the data cable forms a loop at one end of the base such that it can be carried about and will not be lost easily, and further it can be used as an ornament.