Abstract: The analysis of the evolution of the inner relationship in the core ideas of Zola's theory on Naturalism novel about "nature" and"objectivity","being real" and"realism","experiment" and"experimental novel" reveals the close internal logic of Zola's theory on naturalism novels. The evolution from"nature-objectivity" to"being real-realism" and to "experiment-experimental novel",and the evolution from the"nature-being real-experiment" to"objectivity-realism-experimental novel" of the internal logic indicate the longitudinal and latitudinal development,or the formation process of Zola's theory on naturalism novel,and reveal the unique poetic connotation and aesthetic pursuit of naturalism literature. As such,we cannot exaggerate the fissures between Zola's theory on naturalism novel and his literary creation,nor can we separate his theory from the context,so as to avoid misunderstanding of Zola's theory on naturalism novel.

Key words: Zola, theory on naturalism novel, objectivity, realism, experimental novels