A pig-shaped bronze You (a bronze wine vessel) of the late Shang Dynasty at the Shanghai Museum has a unique style and delicate decorations. However, the You is damaged with a missing part as large as almost half of the whole surface. In order to restore the original appearance of the vessel, I made improvements on the traditional integration method through mold-making from the original part. By tailoring and adjusting the mold-cast resin pieces for integration, I overcame the problem that there is usually a small difference in the decorations and shapes between the resin and the original bronze part. The improved method has not only been effective in the restoration of the pig-shaped You, but also demonstrates a new solution and methodology for the integration of other bronze objects.