A rotatable plug includes an upper cover, a dynamic rotatable unit, a static rotatable unit pivotally mounted to a bottom of the dynamic rotatable unit, a connecting cable fastened to the static rotatable unit, and a lower cover. The dynamic rotatable unit includes a plurality of dynamic conductive tubes of which each has a rotatable ring. The static rotatable unit includes a plurality of static conductive tubes of which each has a ring body. The rotatable ring is disposed around and is electrically connected with the ring body. The upper cover, the static rotatable unit and the lower cover are capable of rotating 360 degrees along a traction direction of the connecting cable, and the upper cover, the static rotatable unit, the lower cover and the connecting cable are capable of proceeding the same angle rotation.