OBJECTIVETo research the origin of Zibei Xiqi which included in Volume 3 of < Bencao Gangmu Shiyi > (A supplement to the compendium of materia medica).METHODThe origin of Zibei Xiqi was confirmed with textural, botanical characteristics research and drug name, therapeutic effects and so on.RESULTThe origin of Zibei Xiqi was confirmed.CONCLUSIONThe Zibei Xiqi which is recorded in < Bencao Gangmu Shiyi > should be the immature herbs of Shuang Hudie [Tripterospermum chinense, Gentianaceae], and suggest to correct the original records of the drug name.