With sympathetic and nuanced prose, the book portrays Joe, Pip and Biddy as unpretentious little men of kindness. Pip lives in his sister’s family, living a hard life, his dream is to be a blacksmith like his brother-in-law; he did not want to be a gentleman. Then he wanted to be a gentleman because of a change in circumstances. The theme of love runs through the story of Great Expectations. Pip’s unwavering love for Estella, Pip’s brotherly love for Herbert, Magwitch’s misshapen but deeply hidden love for Pip are all described in detail. But what moves us most is Jonah’s unselfish, unsentimental love, and Dickens’s most intimate description of the relationship between Pip and Joe. Then, when Pip’s hopes of inheritance were so completely dashed, and he fell seriously ill, it was Joe again, who not only gave him great moral support, but quietly helped him to pay off his debts. This kind of love leads Pip to return to conscience gradually in the constant inner struggle between right and wrong. In Great Expectations, the happy life of Joe and his wife Biddy contrasts sharply with Pip’s pursuit of a gentlemanly life. In them, we can see the writer’s praise for the valuable quality and sincere feelings of the ordinary people at the bottom of the society. Dickens’s characterization of people is not just a description of their appearance, but a detailed analysis of people through his unique humor and exaggerated language. He not only depicts the characters from the external environment, but also depicts the characters with the help of the detailed description of the characters’ movements, behaviors, gestures, expressions and so on. In the novel Great Expectations, the author Dickens portrays Pip as the first person perspective in the form of autobiographical in order to be able to express Pip’s psychological activities and action language in detail in the work.