東晉方鎮幕佐以王敦,桓溫二府現存資料最豐。本文的主旨僅在於從王敦幕府的地域構成比例入手，對舊史所謂王敦之亂的地緣政治色彩提出某些補充說明。為此，本文的主要工作，一是查考王敦幕佐今尚可知者五十餘名之鄉籍、幕職及其文獻依據，統計出其地域構成特徵。二是舉列王敦前、後期幕府地域構成的變化趨勢，東南人士宦途受阻、反彈的曲線以及對其政治態度的影響；並進一步分析東南籍幕佐與王敦復染關係的類型，以及兩者互相倚重的利益背景。三是在前述諸點意見的基礎上探討王敦起兵的性質，論証若不單從方陣主帥著眼，而能兼重捲入政治事變的基座性社會力量衝突，那麼，「荊揚之爭」在東晉初年，在相當多的成分上還帶有西晉末期東土豪強「三定江南」餘波的意味。

　　　　　The article, beginning with geographic forming proportion of the office of General Wang, mainly gives some supplementary explanation of geopolitic colour of the Wangs' turmoil described by the old history. Therefore, first the article studies over 50 now-knowable townfellows or staff of the assistants to General Wang, tries to ascertain their documentary reasons, and counts the geographic forming features. Second, it shows the changing trend of the geographic formation of the office at the early and last Wang's stage, the falling and rising of the Southeastern intellectuals in their official career and the effect on their political attitude, and further analyzes the type of the complex relation between the assistants and Wang, and the mutual heavily-relied beneficial background. Then on the basis of the above viewpoints, it probes into the nature of Wang's dispatching troops. If the proof not only deals with the military governor, but also touches the conflict among basic social forces involved in the political event, "the Conflict between Jingzhou and Yangzhou" in the early years of the Eastern Jin Dynasty, to some extent, seems to still have the repercussion to put down three rebellions in the South by the Southeastern despotic forces in the last stage of the Western Jin Dynasty.