Abstract:Objective: To gain a clear idea of the medicinal plant Ainsliaea in Guizhou Province Method:Collecting data and conducting spot investigationResult:The distribution,growing environment and medicinal parts of 16 species and 1 variety of Ainsliaea have been clarified,and an index for their identification is presented Conclusion:The investigation has been proved ture and useful in further studying the medicinal plant Ainsliaea.