Imagination is one of the pertinent characteristics of Romantic poetry. Romantic poetry is subjective and extrasensory. The subjectivity and extrasensory instinct are rejuvenated due to heightened imagination. The prime purpose of this brief article is to elucidate how imagination plays a significant role in Romantic poetry. For this purpose, poetic works of Wordsworth, Coleridge, Shelley and Keats are analyzed. The writer has extracted some verse lines from some of the poems of these poets and has mentioned concisely how these verse lines signify the supremacy of imagination in their poems .This article is fruitful to the teachers and the students who are actually interested in studying English poetry.