The invention provides a concentrically twisted damping-enhanced wire and a damping enhancement method. By a special aluminum alloy layer structure, interlayer gaps between steel cores of the wire and aluminum alloy layers and between the adjacent aluminum alloy layers are constructed, so that the damping characteristics of the wire are enhanced and adverse effects of aeolian vibration on the life of the wire in practical use are reduced. The concentrically twisted damping-enhanced wire comprises the steel cores and a plurality of aluminum alloy layers, wherein the plurality of aluminum alloy layers and the steel cores are coaxially twisted; the innermost layer of the aluminum alloy layers is formed by twisting molded lines of two thicknesses; N thick molded lines are arranged and an included angle between two adjacent thick molded lines is 360 degrees/N; the short edges of the trapezoid cross sections of the thick molded lines are in contact with the steel cores; and a plurality of thin molded lines which are coaxially twisted and connected are arranged between two adjacent thick molded lines and gaps are formed between the short edges of the trapezoid cross sections of the thin molded lines and the steel cores.