This article is from the perspective of the construction disciplines, the legendary research and development of the process of collating, and to explore the underlying causes behind. In the course of the study, the paper found that: there is internal close contact between modern intellectuals' academic care and life concern, over the words: intellectuals' life care lead to the birth of legends, intellectuals' life care lead to it's develop in depth. But modern intellectual's academic concern and care for the life have negative effects, resulting in the early 20th century legend in spite of the building, but not fully established. In this paper, as soon as possible to establish an independent appeal, the legend of Science.This paper is divided into six main parts. The first chapter is exploring the concept of modern legend of what and how happened. Legend of the word first appeared in China in 1910. Zhou Zuoren conducted a preliminary define it in 1913. Since then, Hu yuzhi, Lu Xun Zhou Zuoren further defining them. To 1923, the Chinese legend of modern concept of more mature, learn this modern legend started. The second chapter from many angles on the legends of the early 20th century study, divided into literary point of view, the history perspective, the perspective of folklore, sociology-anthropology perspective. And that the Chinese legend of research and development: from the Den to the field, from simple to depth. The third chapter of the legend of the research topic, introduced by Meng Jiangnv legend, Xu and Zhu Yingtai legend as the representative of legends The figure legends and local legend thematic topic of research. This chapter also discussed the relationship between the liberal social trends of thought at the time of the legendary research and the development. The fourth chapter of "songs" magazine and "folk" magazine as examples discusses the development of modern newspapers legend on the priming effect. With the development of modern newspapers, the legendary research from a single individual scholars as many scholars study the collective research; Chapter V of the overseas Chinese scholars study the situation on legends, scholars from Europe and the United States and Japanese scholars on the research, and interludes on the overseas scholars to study the impact of Chinese scholars. Modern Chinese legend from the beginning to be included within the scope of the world academic system; Chapter 6 is the full text of the conclusions. Modern intellectuals of China linked the Construction of the Science of legends to analysis how develop. Modern intellectuals' academic care and life care have both positive and negative effects.