Buddhist concept of “empty”and “bitter” character relatively weak and sensitive heart li yu in paradiso pain especially at present, many “is also empty” works with the feelings and QiSu sites “grief read hate”. Buddhist concept of “empty”, which is based on human survival outlook and feelings of doctrine of the spirit is not only become the author to write their own cultural background and the support of sorrow, also let the text infiltrated the universality of human care. Due to li yu's rich understanding of the “bitter”view of Buddhism, his poems are filled with the sobs of mourning and sorrow, while giving people the sense of “boundless suffering”. The “empty” and “bitter”view of Buddhism is one of the important reasons for li yu's works. The culture of Buddhism is permeated and permeated. On the one hand, li yu is accustomed to observing the world through “emptiness” and “suffering”. On the other hand, the depth and the range of the theme of li yu's poems are not ignored.