This theme regards studying in 'modem Chinese history'(MCH) as the centre, it is analysed how this field is in historical discipline set up, what kind of characteristic and then develop into. The main focus concentrate on Chiang Ten-fu, Luo Jia-lun and Kuo Ting-yee, show their influence on MCH. The article lays particular emphasis on three parts: First, how MCII becomes independent research field, including the background and condition of the times. Second part discusses the methods and meanings of studying MCH, is mainly with the opinions that three people are correlated with to Chiang, Luo and Kuo in 193Os. Finally, from the manuscript of Chinese general history which made by Kuo, it is as an example analyse the contents about MCH area among them, and try to examine the MCH opinions reflected in the manuscript and interpretations.