Abstract: During the initial and developing stages of Modern Chinese poetry，as the Chinese language could not adequately express the complicated poetic thoughts and modern experience，many poets directly used loan vocabulary（English，French，Japanese，Germany，etc.）when composing Chinese poetry，hence the “bilingual phenomenon”. This paper，through a study of the bilingual phenomenon in poems composed by modern poets such as Hu Shi，Xu Zhimo，Guo Moruo，Wang Duqing，Li Jinfa，Mu Dan，and Zhang Zao，has analyzed the historic significance of this practice in exploring modern poetry’s linguistic space and in attempts on poem’“modernity”. On this basis，the paper has further pondered how contemporary poets can break language boundaries and create new possibilities in composing poems of“common contexts”.

Key words: modern Chinese poetry, bilingual phenomenon, poetic language, loan vocabulary, poem translation