Abstract: The Adventure of Huckleberry Finn is one of American writer Mark Twain’s masterpieces. In this book, Mark Twain used humorous and irony writing style, a large number of fusions, absorption, refining dialects, Missouri black dialect, southwest frontier dialect and many other kinds of language variation. All these language features can highlight the characters in the book and make the characters more vivid. Therefore, through the analysis of The Adventure of Huckleberry Finn features of the language characters and other contents, the readers can understand this book better and can understand Mark Twain's writing style better.

Key words: Huckleberry Finn; Mark Twain; linguistic feature