This study examines the complications of Jeong Ji-Yong's poesie. He simply expressed affection and nostalgia in his early stage, which was characterized as sentimentalism. Then, he shifted from sentimentalism to the modernism that uses mental image, through which he makes a contribution to the modernization of Korean poems. Sooner or later, he denied the modernism; he prefers expressing religious thoughts and feelings Korean people share to the modernism, such poesie, however, led him to dilemma. That is, when he considered the forms of poems as important, their contents became bleak, and when he emphasized the contents of poems, their forms turned to be unsophisticated. This is the point at which the complications of Jeong Ji-Yong's poesie arise. As a result, he failed to balance the contents and forms of poems, which led him not to write poems any more. Although poets' work is primary for critics examine, we need to look at their poesie to understand the essence of their work. It is because poesie is energy that makes poets produce their work.