Whitman (1819-1892) is the representative work of American poets and the first collection of poems with national style and style in the history of American literature. The first edition of Leaves of Grass 1855 contains 12 poems, and the ninth edition 1892 contains 383 poems. The blade of grass symbolizes all ordinary things and ordinary people, and poets should sing for ordinary people in simple language like the blade of grass. Whitman lived in the rising period of American capitalism and was full of hope for his motherland. Praise for democracy and freedom, praise for nature, labor and people are the basic themes of poetry collections. From Bamino to foreign countries, for you, ah, democracy! The poet regards the United States as the embodiment of democracy. He wants to sing for democracy and be proud of America's "sound democratic system". He enthusiastically called on people to "go! Have strength, freedom, earth, storm, health, courage, happiness, self-esteem and curiosity; Let's go All laws and regulations are out! " (Song of the Road) shows the optimistic and enterprising spirit of the rising bourgeoisie. Poems such as Brave Song, I Hear America Singing, and Song of Profession are full of melodies praising labor and laborers. The hero of bold songs is bold and bold, and he is a pioneer. It praises "the beauty of all people with enterprising spirit and courage" and "the beauty of independent spirit, independent starting point and acting on their own strength"; And hope to create an ideal democratic world. Praise for people is also manifested in praise for "self". The "self" in My Own Song and I Sing Electrified Body refers to both poets and all ordinary people. The poet believes that the bodies of men and women are sacred, that every man and woman is a sacred "self", and that all people born are brothers and sisters. Man and nature, soul and body are a perfect and harmonious unity. "Give me a bright and quiet sun" and "A child walks by here every day" depict the magnificence of nature and the integration of man and nature. Ah, Star of France, knock! Knock on the door. Drums! ""are two poems full of fighting. It praised the Paris Commune as a brilliant star, which "scared away tyrants and monks" and called on people to fight for freedom and truth. Besides, "Ah, captain, my captain!" Praise Lincoln's great achievements. "and" When lilacs bloom in the garden recently "; A joyful song depicting the beauty of the sunrise; To a frustrated European revolutionary, it is a famous poem to inspire revolutionary fighting spirit and praise the rebellious spirit. In art, Whitman boldly broke the shackles of tradition and created free verse without strict rhythm and fixed stress. He expressed his artistic view in "Soul has merged with Landscape": "My poems have such a rough appearance and also have their reasons for existence. Do they forget the true meaning of art by slandering my poems? Aren't the artistic laws and regulations they cast rigid and fragile? "Leaves of Grass is bold and unconstrained in style, close to spoken language, with the momentum of waves and the rhythm of prose poems, and easy to recite. Leaves of Grass is brand-new in theme, theme and form, which has had a great influence on China's new poems since the May 4th Movement.