Advertising is a kind of propaganda means to convey information to the public openly and widely through certain forms of media for specific needs. Advertising can be divided into broad sense and narrow sense. Broadly speaking, advertisements include non-economic advertisements and economic advertisements. Non-economic advertising refers to non-profit advertising, also known as effect advertising, such as various announcements, notices and statements of government administrative departments, social institutions and even individuals, whose main purpose is to promote sales; Advertising in a narrow sense only refers to economic advertising, also known as commercial advertising, which refers to advertising for profit. Usually, it is an important means to communicate information between commodity producers, operators and consumers, or an important form for enterprises to occupy the market, sell products and provide services, with the main purpose of expanding economic benefits.