The classic drama Jiaohongji , written by MengChenshun narrated the ideal love of the hero and heroine, which is named as “Live in the same house and die in the same hole”. And both the girl and boy sacrificed their young life to their ideal. The paper tries to find out that why this work is defined as a tragic drama and what leads to the tragedy of the hero and heroine. More over, the type of the tragedy will be defined. It is concluded that the contrast between the ideal love goal and the character weakness when putting it into practice. As for this drama , it belongs to a character tragedy.