IntroductionSince the day the book The Adventures of Huckleberry Finn was introduced to readers, the critical world has been littered with numerous essays and theses on the literary achievements of Mark Twain, but many of them are about the writing style of the Bildungsroman, the symbolic meanings of the raft and the Mississippi River, the color of morality and racism. While few have ever explained why Mark Twain wrote so many lies in this novel. Probably because people generally believed that the splendor of this masterpiece would be obscured by the immoral nature of the lie. But in reality this is not the case, even Mark Twain himself does not think that lying is an immoral thing. As he said in his lecture at a meeting of the Historical and Antiquarian Club of Hartford, an essay later published as "On the Decline of the Art of Lying," he called the art of lying " a virtue, a principle...a recreation, a comfort, a refuge in time of need, the fourth Grace, the tenth Muse, man's best and surest friend, is immortal" (Twain, "On The Decay of the Art of Lying"). We can see that Mark Twain has a mature understanding of the value of lying and he wanted to share his philosophy of lying with us through The Adventures of Huckleberry Finn. Therefore, the main task of the article is to investigate this philosophy of lying in The Adventures of Huckleberry Finn. Who lied? Probably all the characters in The Adventures of Huckleberry Finn lie. Huckleberry Finn is the biggest liar, having lied more than ten times in the novel. In chapter 7, Huck lies to the whole town by creating the illusion of his own death. This lie forms the basis of all of Huck's subsequent lies. Because from there, Huck is already dead, he must reestablish a social identity, which...... middle of paper ......cific/3004/FJour Detail.jsp?dxNumber=165084532939&d=FD9B3D2B66BDF69B344CE8B86D5B8476&s =Huck+ and+the+moral+art+of+lying>.Lester, Julius. “Morality and Adventures of Huckleberry Finn.” Satire or evasion? : Black Perspectives on Huckleberry Finn. Ed. James S. Leonard, Thomas A. Tenney, and Thadious M. Davis. Durham, NC: Duke University Press, 1992. 199-207. Rep. in 20th century literary criticism. Ed. Thomas J. Schoenberg and Lawrence J. Trudeau. Flight. 161. Detroit: Gale, 2005. Information Resource Center. Internet. February 18, 2014..Twain, Mark. The Adventures of Huckleberry Finn. Beijing: Central Compilation & Translation Press, 2010.Twain, Mark. “On the decline of the art of lying.” February 17.2014..