Pailu (Chinese: 排律; pinyin: páilǜ, Jyutping paai4 leot6) refers to a Classical Chinese verse form of the regulated verse (jintishi) type: the rules and regulations of the pailu allow for a poem composed of a series of linked couplets, with no maximum upward limit such as the five, six, or seven character lushi have. The pailu form seems to have first developed as part of the movement known as Tang poetry (after 618 CE).
Pailu is one of the top main types of Classical Chinese poetry in terms of formal classification; and, although not, perhaps, the most common or popular verse form, its existence is not able to be ignored: in fact, pailu is one of the standard verse forms of this important branch of poetry.