Abstract: By way of the exhaustively quantitative and qualitative analysis of "qi"extracted from the Han Dynasty's classic Shuo Yuan ,we have drawn the conclusions as follows:The highest word frequency of "qi"is as pronoun,especially as personal pronoun;The grammatical function is primarily as attribute,modifying the noun or noun phrase;"qi" is used unfrequently as adverb,which expresses some moods,such as infer,interrogate and advise,etc;"qi"as auxiliary word is deeling;however,that of conjunction is in the embryoni...