To prepare a white-based metallic coating comprising a white coating, a metallic coating, and a clear coating.

This method for forming a multilayer coating comprises applying a color base coating material (A), a metallic coating material (B), and a clear coating material (C) in a wet-on-wet manner and conducting heating to simultaneously cure the three-layer coating, thereby forming a multilayer coating. In this case, the color base coating material (A) is a white coating material having a solid content of 40 to 90wt.% at the time of coating, and the metallic coating material (B) is that for forming a transparent coating.