Japanese aestheticist novelist Tanazaki Junichiro’s story "On The Way" tells an appalling ethical story that conveys strong ethical messages. This article takes the approach of literary ethics to analyze its ethical implications from three aspects, that is, the free will and the cause of murder, the rational will and the punishment of crime, and the act of killing a wife and the ethical warning. The story reveals the characteristics of Tanazaki’s writing, presenting the conflicts and contradictions between art and morality. His characters are not arbitrary diagrams or disjointed human beings, and their behavior provides an important moral warning for the relationship construction between husbands and wives.