The Complete Poetry of Song Dynasty has collected the poems of more than nine-thousand poets, so it’s no wonder to find some repetition of poems. Many scholars have done ammendments to it, including Chen Xin's Supplemented Collection of Song Dynasty Poetry and Zhang Ru’an's Correction and Supplement of Song Dynasty Poetry. Through literature review, the author finds some repetition of poems in Wang Gui, Zheng Xie and Wang Anguo Volumes, and holds that it is very necessary to distinguish who are the real authors of these poems．