1, background: usually refers to the research background of the introduction part of the paper.

2. Introduction: usually refers to the introduction of the paper.

Second, the role is different.

1, background: indicate the research reason of the paper, and lead out the text.

2. Introduction: In English literature, it is generally the first part of the article, which introduces the research background, significance, development status and current level of this research field, and leads to the following.

Third, the characteristics are different.

1, Background: The research background is short and pithy, and the literature review is much more detailed. When writing, you should learn to screen and study the most relevant documents.

2. Introduction: Briefly describe the content or related background of the article to readers, arouse readers' interest in this article, outline the text and stimulate reading interest.