Abstract
The last quarter of the 20th century saw epoc-making changes for both of phonological and phonetic researches of Chinese language. Since the ancient time, numerous descriptive researches had certainly been done according to the traditional method, when the new wave which arrived from the western world in the 20th century made them obsolete all of a sudden. In this paper I introduce two subjects which have aroused discussion in the new trends, that is, firstly how the internal rhythm of Chinese synchronizes with the system of stress accents, and secondly how the Chinese tone leads to the pitch contour.