Internet and big data technology are developing rapidly. Automobile companies use big data analysis technology to analyze consumers. Precision marketing, which is used by automobile companies to discover potential customers and predict customer needs, It is more and more widely used. Big data technology provides a broader space for the development of data‐based precision marketing. In the future marketing, which precision marketing will be an irreversible trend. This is especially true in the auto industry. Auto companies use big data to analyze consumers' behavior and habits to draw user profiles. Auto companies select potential consumer user groups and target these user groups for customer positioning, advertising, marketing, and product sales.