Abstract "Romeo and Juliet" and "The Butterfly Lovers" both Chinese and Western Aiyan the sad melody of love, sung for generations, enduring, the true love for the people left to the pursuit of eternal love and hope. This article from the West try a different cultural background, love and ethics of further comparison of the two tragic love differences between different cultures so as to reveal the psychological structure of the tragedy has created two works of the main character of the men and women of different manifestations of love, as well as in the theater To show the different cultural differences. First of all, this paper from the three areas to explore "Romeo and Juliet" and "The Butterfly Lovers" the difference between love tragedy. First, the works of different styles. Chinese and Western cultural backgrounds, different work styles of the two determines the difference. Second, the shape of a different character. By the West in a different concept of love and ethics, two works of the main character has different personalities. Third, the tragedy of a different process and outcome. Western humanism, realism and traditional Chinese Confucian thinking of the Doctrine of the Mean, and the romanticism of the differences between the two works to determine the course of the tragedy and the different outcome. Finally, sum up the drama of the two differences in the performance of the drama to explore a different culture. Key words: Romeo and Juliet; Butterfly Lovers; love tragedy; in the Western cultural differences;加分吧!!