本文分析東宮十率的出身與地域分布、仕途經歷與文武遷轉，以理解隋代軍事體系中社會階層的流動。隋代中央機構的武將來自關隴集團、山東地區和江南將臣，顯示隋代東宮十率不再被關隴集團所壟斷。隋代東宮十率的胡漢界線漸趨模糊，為隋代任用東宮十率的特色之一。隋代東宮十率的父祖任官經歷對東宮十率無直接影響，呈現「門閥削弱，平民入仕」的趨勢。東宮十率的主要選任方式包括軍功、府兵或募兵等途徑，打破門閥壟斷、用蔭入仕的局面。隋文帝、煬帝二期，東宮十率的前任官呈現中央文官出身者減少、地方官增加等兩個現象。東宮十率後任官的類型呈現轉任中央文官人數減少，以及轉任禁衛大將軍增加等二個現象，說明此時已由文武不分走向文武分途的階段。因此，針對擁有軍權的東宮十率之出身與背景、升遷與流動進行分析，可了解當時社會階層的變動，甚至平民出身而逐漸打破「關隴門閥」的社會傾向。

This paper seeks to understand social mobility in the military system during the Sui Dynasty by analyzing the origins, geographical distribution, and the promotion channels of the ten Guards of the Eastern Palace. The fact that in the Sui Dynasty a number of central military generals from Guanlong, Shandong and Southern Groups shows that the Guanlong Group no longer monopolized the positions of the ten Guards of the Eastern Palace. Furthermore, the Hu and Han lines of the ten Guards of the Eastern Palace were becoming less distinct, which was one characteristic phenomenon of the military appointments during the Sui Dynasty. The appointments of the ten Guards of the Eastern Palace in the Sui Dynasty reveal a trend: that "powerful families were weakened, and the civilians entered officialdom." Heredity did not directly impact the selection of the ten Guards of the Eastern Palace. The selection of the ten Guards of the Eastern Palace was mainly based on military merits, and channels such as the garrison militia (fubing conscription) or mercenary recruitment (volunteers). Powerful families no longer monopolized military positions by inheritance. The former appointments of the ten Guards of the Eastern Palace made during the period of Emperors Wen and Yang reflect two phenomena: the number who came from the civil bureaucracy was reduced, and the number who came from local officials was increased. These two phenomena are reflected in the subsequent posts of the ten Guards of the Eastern Palace: there were fewer examples of transfers to the civil bureaucracy following the post of the ten Guards of the Eastern Palace, and its appointees increasingly became the general-in-chief of the Palace Guards. These phenomena indicate that appointments gradually became bifurcated into the civil and the military. By exploring the origins, promotion channels and mobility of the ten Guards of the Eastern Palace, this paper analyzes social mobility as seen in the great military power of the ten Guards of the Eastern Palace during this period. I argue that the promotion of civilians gradually broke the monopoly of the “Guanlong powerful families.”