Abstract: Large data has wide applications in each industry and its core value is to trigger a new value growth with large data thinking.The understanding and application of large data in jewelry industry is lagging relatively, which embody in the jewelry marketing, business management and business model innovation.The valuable information are accessed and provided for decision making through data collection, statistics and mining.In the paper, the application examples of large data in jewelry enterprises were analyzed.The large data had drawn great attentions of jewelry enterprises.The application of large data can not only improve the efficiency of decision making and management, also can accelerate the business model innovation and provide technical support for cross-border development.It is inevitable trend that the jewelry enterprise using large data rapidly develop in order to promote upgrading of jewelry industry.