Big data research and application has become a hot spot in the information technology field, but how to use big data research customer behavior characteristics, to establishment of the era of big data customer insight and precision marketing system, this area is very small. Based on the reviewed of big data and precision marketing, and Based on the general process of marketing, from customer information collection and processing, customer segmentation and positioning, marketing strategy development, marketing, design, marketing, feedback results in five areas to explore big data applications in Precision Marketing.