The Long poems Chang Hen Ge of Bai juyi had a great influence on the creation, scenario rendering and character composition of The Tale of Genji, the Classic Japanese masterpiece. The image of Concubine Yang in Chang Hen Ge is closely related to but different from the image composition of Kiritsubo Consort in Tale of Genji. This paper makes a comparative analysis from the three aspects of their origins, characters and causes of death.