这是提交给1998年于内蒙古大学召开的“第三届蒙古学国际学术研讨会”的论文。迄至当时,契丹文字研究领域虽然发表了为数不少的文章,但各家观点却不尽一致。本文从这些不同的意见中选取较为可靠的,将其分门别类归纳到一起,并就此提出疑问,以期为今后研究提供参鉴。 This is a paper submitted to the 3rd International Symposium on Mongolia in 1998 held in Inner Mongolia University. Up till then, although a large number of articles have been published in the field of Khitan writing research, the opinions of different parties are not the same. This article chooses the more reliable ones from these different opinions, classifies them into different categories, and inquires into them in order to provide reference for the future research.