“脱屣”一词,在中国本来是指就像脱掉旧鞋子一样简单而无任何顾忌,经常用来比喻断然舍弃金钱、地位或家人。可是在日本的历来研究中,“脱屣”却被认为是只有“表示皇帝的让位”这一唯一用法。实际上,通过考察得知,这是在历史演变过程中被逐渐固定下来的用法,而在平安时代初期的汉诗文中,“脱屣”和中国文献中出现的一样,作为比喻表现被用在多种场面。由于历来研究所考察的对象具有局限性,因此得出的结论未免就会有不周全之处。因此,本论文就以此为出发点,在总结整理中国文献中用法的基础上,考察被历来研究忽视的用例,通观整个平安时代作品中“脱屣”的用法,从而达到正确理解“脱屣”的目的,并考证出“脱屣”最终只用来表示皇帝的让位,其原因是由“脱屣”一词用法的历史变迁和当时日本独特的社会历史背景所造成的。 The word “屣 屣” “in China was originally meant to be as simple as taking off old shoes without any scruples. It is often used to paraphrase categorically money, status, or family members. However, in Japan’s historical studies, ”“ ”脱 屣 屣“ is regarded as the only usage of ”the emperor’s concession“. In fact, it is learned through investigation that this is a gradually fixed usage in the course of historical evolution. In the poems of the Han people in the early days of the Heian period, ”脱 屣 屣“ appeared as a metaphor in the Chinese literature Used in a variety of scenes. Due to the limitations of the objects studied in the past, the conclusion drawn may not be complete. Therefore, on the basis of summarizing the usage in Chinese literature, this thesis examines the use cases that have been neglected historically and gives a general view of the usage of ”debauchery“ in the works of the entire period of peace so as to achieve a correct understanding of ” The purpose of this study is to prove that the purpose of “doffing ” is only used to indicate the emperor’s concession. The reason is that the historical changes of the use of the word “devour” and the unique historical background of Japan at that time Caused by