Abstract Writing Techniques: Academic Thesis Abstract Standard Structure and Examples

What this page helps you do first

• Abstract four-element structure
• Chinese and English abstract differences
• Common mistakes and corrections

Abstract standard structure: Four elements

Academic thesis abstracts typically contain four elements: Background, Purpose, Methods, Conclusions.

A good abstract conveys core thesis information in 200-300 words, allowing readers to understand what was done, how it was done, and what conclusions were reached without reading the full text.

How to write the four elements

• Background: 1-2 sentences explaining why this research (one sentence identifying problem, one sentence noting existing research gaps)
• Purpose: One sentence stating what problem this research solves or goal it achieves
• Methods: 2-3 sentences explaining how (research subjects, data sources, analysis methods)
• Conclusions: 2-3 sentences stating what was discovered (main conclusions and innovations)

Abstract writing techniques

• Use complete sentences but prefer short sentences, avoid complex clauses
• Use third person, do not use "I" or "we"
• Do not cite references, do not use figures, tables, or equations
• Conclusions should be specific, not vaguely say "has important significance"
• Research methods should be clearly stated, not just say "conducted empirical research"

Special requirements for English abstracts

• English abstracts typically 150-250 words, shorter than Chinese abstracts
• Tense: Use present or present perfect for background and purpose, past tense for methods and conclusions
• Do not translate Chinese abstract word-for-word; rewrite according to English expression habits
• Pay attention to academic English expression, avoid colloquialisms

Common mistakes and corrections

• Mistake 1: Abstract too long or too short (too short has insufficient info, too long is redundant)
• Mistake 2: Conclusions too vague (like "has important practical significance")
• Mistake 3: Methods description unclear (not explaining what was done)
• Mistake 4: Including details that appear only in main text (like numbering, section references)
• Mistake 5: English abstract word-for-word translation of Chinese

Checklist

• Contains Background, Purpose, Methods, Conclusions four elements
• Word count meets requirements (Chinese ~300 words, English 150-250 words)
• Uses third person
• Conclusions are specific and verifiable
• Chinese and English abstracts consistent in content

Frequently asked questions

Can "this paper" be used in abstract?

Yes. In Chinese academic writing, it is common to use first-person reference like "this study." In English abstracts, generally do not use "This paper" but rather "The study" or "The research".

Do abstracts need to include keywords?

The abstract itself does not need to include keywords. Keywords are usually listed separately below the abstract. But do not omit core concepts in the abstract to avoid being missed in indexing.

What is the difference between proposal abstract and graduation thesis abstract?

Proposal abstract is "prospective," writing what you plan to do; graduation thesis abstract is "summarizing," writing what was actually done. The background and purpose can be similar, but methods should distinguish "planned" from "implemented," and conclusions only exist in graduation thesis abstract.