1, National Documentation Center for Philosophy and Social Sciences. (Online literature data exceeds 6,543,800+million)

2. Chinese and Western scientific and technological literature service platform.

3. China online high-quality scientific papers. (Achievements of papers in the field of natural science)

4. Digital resource library of Chinese books of National Library of China. (More than 170000 books on various subjects can be read online)

5. Chinese academic journals of Hans Publishing House. (125 international open source Chinese periodicals are free to download and read)

6. National Library Reference Union. (Most files need to be sent by email)

7. National Science and Technology Library. (6908 periodicals, conference resources 1506)

8. National academic journal database of philosophy and social sciences. (The largest database of public welfare social science quality journals in China, including more than 600 kinds of quality academic journals and nearly 3 million papers)

9. National data of China. A database provided by China National Bureau of Statistics for querying and downloading massive data, including data of various regions and countries.

National Library of China. (Digital Platform of National Library of China)