Bidding promotion is to promote the products and services of enterprises on the search engine platform in the form of keywords. This is a new and mature search engine advertisement, which pays for the effect. With a small amount of investment, it will bring a large number of potential customers to the enterprise and effectively improve the sales of the enterprise. Bidding ranking is a kind of network promotion method of paying by effect. After purchasing this service, enterprises will register a certain number of keywords, and their promotion information will first appear in the corresponding search results of netizens.