The purpose of this paper is to identify the importance of AV and to analyze the economic impact of AV, identifying the rising new industries due to the AV s proliferation. The main conclusion of this paper is summarized as follows. AV are important because they are intimately related with core factors of 4th industrial revolution such as Internet of Things and Artificial Intelligence. The development of AV is classified into several stages, depending upon technological advances. AV will be popular by 2035. Their economic impact will be classified into direct and indirect ones. The direct impact is intimately related with general cost reduction but, the indirect one with the change of industrial structure. Their total benefit will amount to $7 trillion by 2050. The proliferation of AV will change the characteristics of vehicles, from Property as status symbol to Mobility as a service . The best examples are a moving restaurant and a moving convenient store. Therefore, infortainment industry, mobility-based industry and data industry will be more important than ever.