When your academic thesis and graduation thesis are published, the publishing house requires that the classification number of the thesis must be provided. Generally speaking, the classification number should be determined by professionals, but with the help of literature database, you can still easily find the classification of your paper. The method is as follows:

1. Enter the full-text database of Tsinghua journals, VIP Chinese journals database or the dissertation database of Wanfang database, search with the keywords of your thesis, and see that the retrieved thesis classification number is basically your thesis classification number.

2. Using the database of classified subject words in Fujian Normal University Library, you can find the corresponding subject words and corresponding subject words by the classification number, and you can also find the corresponding classification number by the subject words.