AE (Account Executive) is the abbreviation of the English word Account Executive, which refers to the person in charge of advertising business in an advertising company. "AE" system is very popular in advertising circles such as America and Japan. To implement "AE" system, advertising companies must have a deep understanding of advertisers. Within the advertising company, "AE" is actually a customer agent. He should have a deeper understanding and research on the nature, business principles, policies, marketing goods, customers, competitors, advertising budget and so on of advertisers.