With the arrival of the era of big data, the data source is the exponential growth in the amount of information and complexity of the rapid expansion of extracting information from massive data to be precise is fast becoming a mandatory requirement of the corporate strategic planning. The retail sector's strategic significance of Big Data not only lying in having huge data, but also in how to specialize processing such data, especially conducting accurate data into customer relationship management (CRM) and changing the traditional data analysis lagging and low frequency,in order to achieve customer value and create economic profit "research purposes. This paper focuses on the new idea --‘accurate data’from the original customer relationship theory,which provides some help for Changchun as well as domestic retail enterprises to strengthen customer relationship management level, improve customer satisfaction, in order to gain competitive advantage. By cognitive understanding of customer relationship management and customer data analysis of Changchun, Jilin Province’s competition in the retail environment,we are exploring the CRM in the city of Changchun retail status. On this basis,I proposes that by the accurate analysis of customer data, the establishment of a retail CRM system architecture and implementation strategy and the full implementation of customer relationship management is required, in order to deepen customer data.I want to contribute to Changchun retail enterprises by meeting the arrival of the era of big data and promoting their better development.