It's essential to seek truth,good and beauty in translation of poems. So,in translation,it's advisable to achieve the unity between similarity in form and that in spirit.If it is difficult to do so,it's better to arrive at similarity in spirit than that in form.Taking the translation of Wang Yue,by Du Fu,the famous poet of the Tang Dynasty,for example,the paper examines the issue of similarity in form and that in spirit in translation of poems.