By widely using modern information technology and accurate positioning, enterprise marketing service can be more personalized. This kind of accurate marketing method, to a certain extent, makes the marketing cost greatly reduced, shortens the related sales channel, at the same time pays the least cost, satisfies the consumer's demand to the greatest extent. The so-called precision marketing, is in the precise positioning on the basis of relying on modern information technology means to establish personalized customer communication service system, enterprises can be measured to achieve low-cost expansion. The core theory of accurate marketing is 4C theory, namely customer, cost, convenient, communication. It carries out the basic principle of consumer orientation, and advocates that all enterprises should take consumer demand and desire as the basic orientation. Due to the short sales channels, it can reduce circulation links and reduce marketing costs, in order to reduce the cost of customer satisfaction; it can provide customers with a large number of goods and services information, so that customers can not go out to buy the products they want to improve the convenience of customer shopping; It can achieve two-way communication with customers. By obtaining information about relevant services and goods, customers can make purchases at home, making it more convenient for consumers to make purchases. At the same time, you can also communicate with consumers online in a timely manner. Therefore, in the era of big data, every consumer's different needs, relevant enterprises can be the greatest degree of satisfaction, so that the utility of the product has been enhanced, marketing-related services are more personalized. Big Data has provided the necessary foundation for accurate marketing, based on summarized and collated transferable data as well as transparent and visible data on individual customer behavior and preferences, so that enterprises can realize "one-to-one" marketing, under the background of big data, the product design of enterprises takes into full account the individual character of consumer demand, enhances the adaptability of product value, and thus creates more product value for customers.strategy.