This study starts from the point of limitation of ‘one line transition(一線式變遷)’ model which dealt with the development process of Chinese based on particular era and particular area in traditional Chinese phonology history division and transition study.
If we look at the development process of the Chinese phonology history by simply connecting the differences between the North and South regions that exist between the dynasties that are central to each period and those bassoons, it is difficult to get an objective and accurate conclusion about the interpretation whether this reflects the periodical change process, or simply from regional differences.
This study starts from the point of view of the ‘scattered multi-line transition(散點多線式 變遷)’ model designed to overcome the limitations of this ‘one-line transition(一線式 變遷)’ model.
The ‘scattered multi-line transition(散點多線式 變遷)’ means that there can not be only one sound system point on the same disclosure plane, and needs to set several sound system points in consideration of each dialect situation, so these each ‘scatter points’ again develops diachronically.
This study is proves south and north phonology’s development period and speed shows different with consideration of synchronic system’s many dialects and their development. Also proves that Chinese historical phonology’s period difference is also important.