Cheng-chen Chien the poet translates the postmodern spirit into the positive force of his poetry and presents it in an idiosyncratic aesthetic aspect. With examples of his poems, this article recognizes that Cheng-chen Chien has constructed a world of poetry upon the foundation of image and thinking, functioning respectively as the essential element of juxtaposition and of parallelism. The special features of such an achievement are as follows: the expression by means of image and metonymy substitutes the method of representation and metaphor; the subjective confessional method is avoided and replaced by the dialectic questioning on man's being; using the concept of "anti" to juxtapose any two extremely different things, rather than two descriptive scenes or topics; the rhetoric emphasis of poetic lines lies in the normative relation between the verb and the object of a sentence, rather than the juxtaposition pattern of topic-comment; and the subtle exploration of both the special separation and the temporal flow, together forming the basis of the chain of images, serves to present the narrative philosophical thoughts. Therefore, Chien's poetry tends to express the postmodern questioning and critical view and, meantime, spotlights the profundity and the meaning of being. In brief, Cheng-chen Chien's poetry shows the postmodern spirit in a way that is creative and very different from most of the poetic expressions in contemporary Taiwan, which incline to stress on the play of word and of form; this special feature of his poetry requires a very special attention.