Wang Shifu’s A Tale of the West Chamber has been categorized as a Yuan Zaju opera,but was also paradoxically included in the anthology of Nanxi Chuanqi Opera The Sixty Kinds of Qu of the Ming Dynasty.Compared with the structures of Yuan Zaju opera and Nanxi Chuanqi Opera,A Tale of the West Chamber doesn’t appears to conform to either of them.The form of the script proves that the opera must have been written during the middle of the Yuan dynasty,which explains why there were two different views on the opera during the era of the Ming Dynasty:some saw it as Yuan Zaju opera for its use of "beiqu" and "taoqu";others considered it as a link in the chain of the development of Nanxi Chuanqi Opera.