本文首先对美国的大数据开发与研究计划进行了简要的研究。并且立足于美国的XDATA项目,分析了其目的、基本定位、发展层次。最后本文结合大数据时代的特点,对美国信息网络安全新战略进行了较为全面的探讨,了解美国如何利用新技术,直面网络安全问题。 This article first makes a brief study of the big data development and research program in the United States. And based on the XDATA project in the United States, it analyzes its purpose, basic orientation and development level. Finally, this article combines the characteristics of the big data era to conduct a more comprehensive discussion of the new strategy of information network security in the United States, and understand how the United States uses new technologies to face the problem of network security.