Provided is a copper strip preparation process for a high-end frame material. According to the weight percentage of components in a smelting furnace, the total content of standard electrical cathode copper and Cu in all alloys is 96.5% or above, iron Fe accounts for 2.1-2.6%, phosphor P accounts for 0.015-0.15%, zinc Zn accounts for 0.05-0.20%, stannum Sn accounts for 0.005-0.050%, magnesium Mg accounts for 0.008-0.05%, the sum of impurities does not exceed 0.1%, the sum of alloy elements and impurities is 0.15% or below, and the weight sum of the above components is 100%; then, the followingsteps of smelting, casting, saw cutting, hot rolling, face milling, cold rolling, edge cutting, annealing, rolling of finished products, cleaning, shearing of finished products and package and warehousing are carried out. The problem of high temperature softening and other aspects of an original TFe2.5 and other frame material copper strips is solved, the high-end frame material has the obvious advantages of high strength, excellent electrical conductivity, good subsequent processing performance and the like compared with frame materials prepared by adopting an original process, the chemical composition of the material is stable, and the surface is clean, smooth and free of oxidation and discoloration.