Provided is a preparation process of a copper strip for a framework material. The preparation process comprises the technological steps of proportioning, smelting, casting, saw cutting, hot rolling, face milling, finished product milling, edge shearing, finished product annealing, washing, finished product shearing and packaging and putting into a storage. Compared with a special-shaped framework material manufactured by an original process, the copper strip produced by the preparation process has the remarkable advantages of high strength, good electrical conductivity, good subsequent machining performance and the like, chemical components of the material are stable, the surface is clean, smooth, free of oxidation discoloration, and free of defects like peeling, burrs, bubbles, cracks, layering, inclusion, holes, black points, folding, verdigris, scratching and corrosion, the copper strip can adapt to the more severe use environment, and the service life of a profiled bar is prolonged.