The Adventures of Tom Sawyer is one of the most famous satirical novels of Mark Twain, which satirizes the decadent religious rituals of the United States and eulogizes the free and lively nature of the early youth with the quality daring to pursue through the experience of the protagonist Tom. Sawyer, a little boy. By analyzing how Mark paints the good quality of the chil?dren under the decay system from the three angles—the pursuit of freedom, the courage to explore, and the sense of justice, we can present the very valuable educational idea to contemporary parents and children.