本文首先介绍了《蒙古秘史》古今中外的各种版本,评论了它们的优劣;接着提出主要的观点,认为根据写作形式和记叙内容的不同,必须将《蒙古秘史》分割为两部分:前面的第1节至268节,用文学形式记述成吉思汗的一生,是真正的、原始的《蒙古秘史》,用中外历史资料,考证其成书于鼠儿年大聚会,即大蒙古国举行第一次“忽里勒答”会议的公元1228年;后面的第269至281节,用写史的形式记叙窝阔台继位为合汗后的历史,应当定名为《窝阔台合汗事迹》,其作者为镇海,写成于公元1241年窝阔台逝世前不久。 This article first introduces the various versions of “Secret History of Mongolia”, both ancient and modern, and comments on their advantages and disadvantages. Then, I put forward the main viewpoints that the secret history of Mongolia must be divided into two parts according to the different forms of writing and narrative contents: Section 1 to Section 268, describing the life of Genghis Khan in literary form as the true and original “Secret History of Mongolia”, using the historical data both at home and abroad to examine the book’s first large-scale gathering in the Year of the Rat, In the latter part of Chapters 269 to 281, a record of the history of Wo Kwek in the form of a written history is the history after Wo Khan and should be designated as “ ”Written by Zhenhai, shortly before the death of Wokuo Terrace in 1241 AD.