Need. Literature review is an important part of undergraduate thesis. After the topic of graduation thesis is determined, some basic work needs to be done before writing. The first thing is to know the basic situation of other people's research on this subject. Because the most fundamental feature of research work is to be creative, not to repeat the path taken by others.

Only by being familiar with other people's research on this subject can we avoid the ineffective work of repeated research and engage in higher-level and more valuable research on the basis of predecessors. The second is to master the basic theoretical knowledge related to the discipline.

Only theoretical basis:

Only in this way can the research work have a solid foundation, otherwise, it is impossible to carry out in-depth research, let alone innovation. The above two basic tasks have been fully reflected in the literature review.

A good literature review can not only lay a solid theoretical foundation for graduation thesis writing, but also show the author's comprehensive ability to summarize, analyze and sort out the existing research literature. Therefore, before writing the opening report of graduation thesis, it is necessary to write a literature review.