Abstract: This article is divided into seven sections. The first section is the foreword, explaining the motivation and goal of this study, establishing the method and scope, and introducing the results and reflections made by earlier scholars. The second and third sections sort out the contents, types and analyses of the word “Qing” in the Pre-Qin literatures, including Book of Poetry, Book of History, Zuo’s Annals, Discourses on the States, Analects, “Confucius on Poetry,” Book of Changes, Menzi, Xunzi, and “Xing Zi Ming chu”. It is pointed out that the development of the meanings of “Qing” was diverse, complicated and long. The fourth section is an inquiry of the Pre-Qin Confucians’ understandings about “nature and Qing” in order to highlight the position of “Qing” among all the analyses and discourses concentrated on mind and nature and clarify the relationships between mind, nature and feelings. The fifth section is an analysis of the Pre-Qin Confucians’ understanding about the relationship based on “desire.” The first step is to categorize and describe the contents of desire, explaining the confirmation of desire by Confucius, Menzi, Xunzi and “Xing Zi Ming chu”. Then we will talk about how they dealt with desire. The sixth section inquires how the Pre-Qin Confucians understood happiness, anger, sorrow and joy, presenting how the different schools saw the four feelings and what aspects the four feelings focus on. The seventh section concludes with how the Pre-Qin Confucians discoursed on “Qing” and how their discourses differed from one another, which is to show the result of this study and point to the issues to be further explored in the future.