Mark Twain was an American in the 19th century. He used many artistic styles when he wrote The Adventures of Tom sawyer, the most prominent of which was humor and irony. The Adventures of Tom sawyer, with the protagonist Tom sawyer as the center, through his growth experience and adventure stories, reflected some of the real problems of the 19th century American society, such as religion, family, morality and so on. In the narration of the story, Mark Twain used the singular and the first person narration to make the readers feel Tom's life and emotions more truly. In addition, Mark Twain used irony and humor to highlight the absurdity and humor of the protagonist in The Adventures of Tom sawyer. He satirized some unreasonable and absurd phenomena in society by describing the absurd behavior and pranks of Tom and his friends. At the same time, through some humorous descriptions and conversations, he made the readers feel that Mark Twain's unique humorous style enhanced the interest and durability of the novel. The Adventures of Tom sawyer was one of Mark Twain's masterpieces. It used a variety of artistic styles, with humor and irony as its prominent features. It was a classic novel full of interest and enlightenment.