Du Fu is a poet who cares about national security and people's sufferings. In turbulent times, personal setbacks are full of sadness at the touch. There is a deep anxiety in his poems, whether it is sketching people's sufferings, homesickness for friends, or writing about his own poverty, his feelings are profound and broad. His poems contain an accumulated emotional force. Every time he wants to spit it out, his kindness and his Confucian self-restraint form a neutral attitude towards life, which suppresses the grief that is about to spit it out and makes it slow, deep and low. Personal grief has become a deep concern for people's suffering, leaving endless charm. Depression and frustration are the main styles of Du Fu's poems. Depression is emotional sadness; Drug withdrawal is the ups and downs of emotional expression and repeated low returns.