Abstract:     Jan Alber is one of the important western“unnatural narrative”theorists. Taking the “unnatural”concept in unnatural narrative as the starting point, an analysis of the normative nature of a concept category reveals some defects in the concept of unnatural narrative. In the construction of a new concept, narratologists should not just put together some concepts and terms on different levels and in different meanings. A concept or theory can have its own characteristics and value setting, but the premise is that the theoretical construction must have a clear set of connotation and extension, and should not employ a method of generalizing to another term casually, and make it an“uncertain”existence. Scholars concerned also have different views on the concept of unnatural narrative, with some of them even opposing it, which also indicates from the other side that the concept lacks a proper consensus. 

Key words: unnatural narrative, uncertainty, unnatural, impossible, actualizability