Data refers to massive data that is so large that it is difficult to obtain, manage, process, and organize it into useful information through general software tools. It has four characteristics of large amount, high speed, diversity and value, and is considered to be the "new century of mankind" "New wealth", value "comparable to oil", developed countries have used the development and use of big data as an important goal to win a new round of commanding heights. The text is intended to explain:. ['There is still technical difficulty in processing big data.', 'Huge value is hidden behind big data.', 'Developed countries have taken a step forward in the development and utilization of big data.', 'Development and utilization of big data has become a hot spot in a national competition.']