In order to make The Peony Pavilion more suitable for the stage performance, Feng Menglong adapted The Peony Pavilion into A Romantic Dream. Feng Menglong thought that "it was amazing tha the two dreams coincidently matched up", so he created the plot of the "three encounters".Therefore, there were many changes and different theme in A Romantic Dream from The Peony Pavilion. I attempted to discuss "dreams" in both The Peony Pavilion and A Romantic Dream in their respective aesthetics and to examine whether the adaptation of A Romantic Dream was proper. Also, I examined the plot of "the same dream" retained by later performances and attempted to orientate A Romantic Dream in the history of performances.