Lu Yao's novel Life expressed the difficulties and obstacles on the road of life and the complexity of human nature, and explored the meaning and value of life. The main theme of the novel included the following aspects: The setbacks and tribulations on the road of life: Gao Jialin, the protagonist of the novel, experienced many setbacks and tribulations in his growth, such as the poverty of his family, the failure of education and the loss of love. These experiences made him deeply aware of the hardships and difficulties on the road of life. The meaning and value of life: In the novel, Gao Jialin believes that the meaning and value of life lies in struggle and pursuit. Only through tireless efforts and struggle can one realize the value of life and contribute to society. 3. The complexity and variety of human nature: The novel depicted many different characters with different thoughts, beliefs, personalities, and habits. These characters reflected the complexity and variety of human nature. Life is a novel full of philosophy and thinking. Its thoughts and cultural heritage are mainly reflected in the profound discussion of life, society and human nature, reflecting the development and changes of modern Chinese literature.