There are not as many British positive romanticism research as romanticism research.The positive romanticism possesses distinguished characteristics in different cultures.The English positive romanticism pushed the romanticism literature to the highest among which Shelley's Ode to the West Wind is one of the best works.Through mainly analysis on the background of Ode to the West Wind,and the features of positive romanticism,my research finally drew an conclusion that Ode to the West Wind adopts a variety of ways to analyze the subjectivism,the political lyricism,idealism.This thesis also illustrates the features of human's appreciations for the nature.