Weiqilu 偽齊錄 "The Usurpatorious State of Qi" is a history of the short-lived puppet state of Qi 齊 (1130-1137) that was founded by Liu Yu 劉豫 (1078-1143) in the late years of the Northern Song period 北宋 (960-1126), when the Jurchens conquered the whole north of China.
The author of the book is unknown, but Liao Quansun 繆荃孫 (1844-1919), studying contemporary sources as presented in the book Sanchao beimeng huibian 三朝北盟會編, assumed that it was Yang Yaobi 楊堯弼. Liu Yu's biography is to be found among the collective biographies of rebels (Panchen zhuan 叛臣傳) in the official dynastic history Songshi 宋史, but the 2-juan long Weiqilu adds some historiographical material that is not included in his official biography, like a document about his investiture as king of Cao (Xie jin feng Cao wang biao 謝進封曹王表).
The Weiqilu is to be found in the series Ouxianglingshi congshu 藕香零拾叢書.