The invention relates to the technical field of wires, cables and materials, and especially relates to a simple-structured cable. The simple-structured cable is composed of multiple conductors and a sheath layer wrapping the conductors, and is characterized in that a sheath layer material is arranged between any two adjacent conductors; on the cross section of the cable, the edge of any one conductor is disposed within the boundary of the sheath layer; and the multiple conductors are distributed along the sheath layer, and any two conductors are not in contact. The invention also discloses a manufacture method of the cable and a formula of the sheath layer material used by the cable. The simple-structured cable and the manufacture method have the major advantages of simpler product structure, lower cost, easier manufacture and less equipment investment for manufacturing.