The clue of the novel, The Adventures of Tom sawyer, was the character and experiences of the protagonist, Tom sawyer. Tom sawyer is a curious, brave and adventurous boy. He shows all kinds of mischief and mischief in his daily life, which forms the main plot of the novel. In the novel, Tom sawyer and his friends often faced various dangers and challenges, but they always overcame them, learned from them, grew up and became better. Through the experience of Tom sawyer, the novel shows the kindness, courage, wisdom and tenacity of human nature. At the same time, it also reveals some problems in American society at that time, such as religion, morality, law and so on.