The article deals with the set of grammatical notions used by the author of 《语助》 “Yuzhu”, that is the first special monograph in Chinese linguistics dedicated to the description of function words. The study of works significant for the development of the linguistic knowledge is very important for historiographical and epistemological description of the formation of a certain tradition (in this case the Chinese one), since such works mark the stages of qualitative shifts in the structure of knowledge.
