Preface In 1997 China’s competent departments authorized China Internet Network Information Center (CNNIC) to organize relevant Internet entities to jointly carry out an Internet development survey. Ever since then, CNNIC has published 38 statistical reports on Internet development in China, and this report is the 39th report. All the reports of CNNIC have witnessed the whole development process of China’s soaring Internet industry. With precise and objective data, the reports provide a significant basis for government departments and companies to master the development of Internet in China and make relevant decisions. Since 1998 CNNIC has been issuing the Statistical Report on Internet Development in China at the beginning and middle of every year by convention. The Internet has growing influence on the overall social stability, economic development and cultural development, and the national strategy of cyber development has been moved forward. As a witness to Internet development, CNNIC correspondingly expanded and deepened its survey on the whole society’s application of Internet. The main body of this report consists of five chapters: Basic Resources, Enterprise Application, Personal Application, Government Application and Cyber Security. The chapter of Basic Resources introduces the development of basic resources for Internet in China; that of Enterprise Application conducts surveys on Chinese companies to have an understanding of application of the Internet in the operation of these enterprises; that of Personal Application is dedicated to the size and structure of Internet users, the environment for Internet access and the development of personal application of Internet; that of Government Application focuses on the overview of e-government services, and development of Zhengwutoutiao (headlines of government affairs based on the App Top News) and official Weibo of government affairs; and that of Cyber Security concentrates on the basic situation of domestic cyber security. The report aims to accurately and objectively reflect the development of the Internet and IT application in China in 2016 through the aforesaid five aspects. We hereby express our sincere gratitude to Internet users who have participated in our 39th