Abstract: The narrative existential sentences are the most typical category in expressing the significance of existence. Taking the three vernacular novels written separately in the 16th, 17th and 18th century as corpus, we can see the basic characteristics of existential sentences in modern Chinese narrative: semantically, spatial sentences dominate; structurally, contents expand, that is, besides the most common noun components, the predicates, subject predicate phrases, prepositional phrases and so on can also take the role of the concept of time and space and the existing subject; restricted and modified components can be added before the intermediary verb and dynamic auxiliary after it.