The discussion about Qing in the literatures among the PreQin Dynasty by Li tianhong and Ouyang zhenren had both rationality and shortage.There were two kinds of meanings about Qing in the literatures among the PreQin Dynasty in the background of theory of Nature and Qing. One was metaphysical comparatively with Nature meaning nature itself of human or thing and the other was not metaphysical which had two kinds of meanings. One was subjective meaning true in heart and the other was objective meaning true in business.