The number of words for doctoral dissertations is not mandatory in China, but different schools have different requirements for doctoral dissertations. Take the requirements of doctoral dissertations of Henan University in the first half of 20 19 as an example;

Number of words in the text of the paper (excluding references):

Doctoral dissertations in natural sciences are generally not less than 50,000 words; Doctoral dissertations of liberal arts are generally not less than 80,000 words; Master's degree thesis is generally not less than 20 thousand words; Master's degree thesis is generally not less than 6.5438+0.5 million words.

Extended data:

Classification of doctoral thesis types:

1, theme type

Based on the analysis of previous research results, this paper expresses opinions in the form of direct discussion and puts forward academic problems of a certain subject from the front.

2. Debate type

This is a paper aimed at others' views on an academic problem of a certain subject, with sufficient arguments, focusing on exposing its shortcomings or mistakes, and expressing opinions through debate.

3. Summary type

This is a kind of paper that introduces or comments on an academic problem of a certain subject on the basis of summarizing the research results of predecessors or present people to express their own opinions.

4. Comprehensive type

This is a paper written by organically combining summary and demonstration.

References:

Henan University Graduate School -20 19 Notice of Degree Awarding for Postgraduate Thesis

Baidu encyclopedia-doctoral thesis