Abstract: Lust, Caution is full of contradictions of binary opposition. Zhang Ailing gave a full expression of the individual lives in perceptual space (lust) and the rational space (caution), the space of human desire (lust) and social norms (caution), the space of the state (caution) and the individuals (lust), and revolutionary space (caution) and desire space (lust). In the space of Lust, Caution love ethics of men and women showed gender differences and blending under the background of war. The author had a profound reflection of the survival and death, rescue and destruction, compromise and resistance, etc., and the readers can feel the hardship of life and the confusion of self perception. From her personal experience, Zhang Ailing constructed the occupied Shanghai from the military, politics, economy, society, culture, etc., and analysed Wang Jiazhi's living conditions and characteristics, revealing the struggle of human nature in the discourse of great revolutionary hero. The author's unique observation and experience of war, and her perception, imagination and presentation of the city, make the novel a charming light and color in the thinking of human nature.