This paper seeks to find how Seamus Heaney attempted to establish his own poetic world different from that of W. B. Yeats, who was a great poet in the world. Since Yeats was an Anglo-Irish and Protestant, Heaney, a Northern Ireland Catholic, might have seemed to find it easy to build his own poetic world in a different relation to Ireland and the Irish. But Yeats was still a large and high wall for a starting poet to cross over. But Heaney chose to place his primary thrust on his own soil ? Northern Ireland farm life, which contrasts with Yeats, who preferred Irish legends, myths, and aristocratic, conservative ways of life, and “spiritualism.” As a result, his expression of Ireland and Irishness has become another uncommon voice in Irish literature after W. B. Yeats.