Abstract:David Herbert Lawrence is one of the most prominent novelists. His first well-known work Sons and Lovers, which is his autobiographical novel, tells the stories happened among people, especially between men and women under the influence of the industrial civilization by describing the relationships among the Morels and others. 

    Based on interpersonal function and speech act theory, the study will analyze the dialogues of the characters in Sons and Lovers. From this perspective, more about the relationship between complex characters can be known: Pual’s Oedipus complex, Mr. Morel and Mrs. Morel’s mendacious love and so on. From the analysis, the character of the main characters in the novel can be reflected and more about Sons and Lovers can be learned.

Key words: dialogues of the characters; interpersonal function; speech act theory

摘要:劳伦斯是最著名的小说家之一。他的成名作《儿子与情人》是其自传体小说，围绕着莫雷尔一家及其他人的关系，讲述了在工业化文明的影响下人与人之间，特别是男人与女人间发生的故事。

    本文以人际功能理论和言语行为理论为基础,对劳伦斯的《儿子与情人》中的人物对话进行分析。从这个角度分析，可以更理解人物之间错综复杂的关系，保罗的恋母情结，莫雷尔夫妇的虚假的爱等等。通过分析，体现了小说中主要人物的性格，并对《儿子与情人》有更多的认识。

关键词：人物对话；人际功能；言语行为理论

 Sons and Lovers is Laurence's masterpiece and his autobiographical novels. Whether from the subject of creation or expression present obvious anti-traditional consciousness, it marked the advent of modern British literature entered the heyday. Interpersonal function theory is an important part of systemic functional linguistics, and speech act theory is an important part of pragmatics. 

　　　By combining the two studies, the relationship between the characters can be known. At first, Mr. Morel and Mrs. Morel actually love each other. But after many years, their relationship becomes bad. Their love becomes mendacious. Because Mrs. Morel hates her husband, she give all her love to his son. Their relationship is not between mother and son. She let her son become a Oedipus complex man. And Paul love Miriam in spirit. From the analysis, the character of the main characters in the novel can also be reflected. Mr. Morel was a humorous and active man when he was young, but after married, he becomes rough and heartless. Mrs. Morel was a shy and subtle girl when she was young, but because of her husband, she becomes brave and strong but hopeless. Paul is a stickler but timid man. He is a sentimentalist. From this study, more about Sons and Lovers can be known.