“阁”字古有“止扉”之义。本文分别从文字学角度对止扉之“阁”的字义、字源进行探析,从文献学角度对历史上止扉之“阁”的形制进行疏理,从考古学角度引入河南洛阳隋唐城宣仁门遗址发掘的“止扉石”作比较,最后对《营造法式》“止扉石”的形制、作用做了考证。总结出止扉之“阁”为门开后插在两旁以防止门扉自阖的长木。 “Court ” ancient word “only ” “meaning. This essay analyzes the meaning and etymology of ”Court “ from the angle of philology, from the perspective of bibliography, Sui and Tang Dynasties Xuanrenmen sites unearthed ”Zhi Fei “ for comparison, and finally ”create a French“ ”Zhi Fei stone “ of the shape and function of the textual research. Summed up the door of the ”Court " for the door to open on both sides to prevent the door from the door of the long wooden.