Abstract: This invention provides a method for forming a multilayered coating film, which comprises applying a first aqueous base coating composition, then applying a second aqueous base coating composition without preheating, then conducting preheating, subsequently applying a clear coating composition, and then curing thus formed three layers of first aqueous base coating film, second aqueous base coating film and clear coating film simultaneously, wherein a coating composition which comprises a specific aqueous polyester resin, a specific aqueous acrylic resin, an aqueous urethane resin and a melamine resin, when used for the first aqueous base coating composition, gives a multilayered coating film which is excellent in smoothness, distinctness-of-image gloss, chipping resistance and hardness.