1, Marxism, Leninism, Mao Zedong Thought

2. Philosophy

3. Social science

4. Natural science

5. Comprehensive books.

22 categories are divided into:

1, Marxism, Leninism, Mao Zedong Thought, Deng Xiaoping Theory

2. Philosophy and religion

3. Introduction to Social Science

4. politics and law?

5. Military affairs

6. Economy

7. Culture, science, education and sports

8. Language and writing

9. Literature

/kloc-0 0 art

1 1, history, geography

Introduction to natural science

13, Mathematical Science and Chemistry?

14, astronomy, earth science

15, biological science

16, medicine, health

17, agricultural science

18, industrial technology

19, transportation

20. Aviation and aerospace

2 1, environmental science, safety science

22. Comprehensive books?

Extended data

trait

(1) China Library Classification is a comprehensive classification with detailed categories, many annotations and different versions, which can meet the document classification needs of various libraries and information departments.

(2) On the basis of the rank list, the compilation technology is improved by adopting the combined numbering method, setting alternate categories, compiling multiple sub-tables and adopting multi-column classification.

(3) The classification number is short, easy to remember and use.

(4) A detailed category index and description (manual) has been compiled.

China Library Classification has been adopted by most library and information departments in China. Starting from 1988, the standard book number (ISBN) of books published in China adopts the category number of China Library Classification. Its classification number is also printed on the centralized catalogue cards compiled by Beijing Library and Shanghai Library. 1985 won the first prize of national scientific and technological progress.