The introduction of the paper is also called the introduction, preface or introduction of the paper. The main body of the paper consists of three parts: introduction, theory (results and discussion) and conclusion. The introduction puts forward problems, and this theory analyzes problems and induces and solves them.

Introduction, also known as preface, summary and introduction, is the beginning of the main part of the paper. Its main purpose is to provide readers with the background, significance and present situation of the research, and its function is to explain the starting point, focus and value of the research, guide readers into the theme of the paper, and help readers read and understand the full text. The basic content of the introduction includes three parts: the reason, purpose and background of the research; Problems and their theoretical basis, experimental basis and research methods; Expected result and its position, function and significance. The quality of the introduction is one of the important criteria to judge the quality of the paper. A good paper lead can not only arouse readers' interest in reading, but also be the key to improve the hit rate of paper publication, which has a great influence on the dissemination and transformation of the author's research results. The introduction of the paper should pay attention to the following aspects in the writing process: the writing of research background; Research-oriented writing strategy; Writing methods with research value; Comply with formal requirements and language norms.