The present invention is the mass percentage composition of the components of the shell layer is Zn: 70.5 ~ 95%, Cu: 2.5 ~ 27%, X: 0.02 ~ 4.0%, Y: the same as 0.002 ~ 0.4%, the rest being brought by the raw material and unavoidable impurities; Wherein, in X is Ni, Ag, Cr, Si, a metal of any two kinds selected from among Zr, the content range of the two types of metal are both 0.01 ~ 2.0%, Y is Ti, Al, Co, B, P an element of any two kinds selected, the content range of the two elements are both 0.001% to 0.2%; And ε phase content is more than 80wt% in the shell layer structure, and the other exposes the zinc-based alloy electrode line is also γ-phase or high-accuracy η merchant. The present invention also disclose a method for producing the electrode line. Compared to the prior art, by the electrode lines of the present invention it has high is the smoothness of a metal workpiece surface treatment cutting, good surface quality, a high cutting accuracy, at the same time the electrode lines of the present invention simplifies the manufacturing process, a high feasibility, less manufacturing steps, it is possible to easily realize a large-scale and automated production.