The “ancient to modern changes” of advertising history refers to the transformation from the ancient advertisement form to the modern advertising agency industry all over the world. It has experienced three key steps: frstly, from the ancient advertisement form to the early advertising agency services; secondly, the Western advertising industry from the public welfare agency to the commercial agency, under the the context of mercantilism; thirdly, from the advertising brokers to the whole case agency stage, and communicated in the world with the international expansion of new advertising company. So far, in the global scope, the advertising industry has completed the historical paradigm shift from the basic forms of ancient advertisement to the modern advertising agency concept.