Since Wang Guo-wei,the tragic theory is always one of key ideas of the study on
A Dream of Red Mansions. But it is not abundant to comment
A Dream of Red Mansions with tragic theory.This paper analyses the orbit of establishing tragic theory of
A Dream of Red Mansions, It reveals the internal threads of forming tragic idea of
A Dream of Red Mansions.This indicate that there are an unbridgeable gap in the tragic theory and
A Dream of Red Mansions.The cracks of the tragic theory of
A Dream of Red Mansions arose from this.