Aster subulatus Michx. (AsM) was discovered and identified asa new cadmium (Cd) hyperaccumulatorthrough field investigation andexperiment of sand-based nutrient solution culture in greenhouse. The investigationresults showed that AsM had strong tolerance, absorption and accumulation ability to high content Cd in soil, Cd content in stem and leaf of above-ground parts were 90.0-150.7mg/kg and 119.8-172.6mg/kg, respectively, with mean values of 132.8mg/kg and 139.2mg/kg, respectively.The experiment of sand-based nutrient solution culture demonstrated that AsM had a strong tolerance to Cd in the growth medium. When Cd concentration was up to 150mg/L in the growth medium, the plants still grew normally, and there was no significant difference between the plant height and the control. The content and accumulation of Cd in shoot gradually increased asCd concentrationincreased in growth medium. When Cd concentration reached 120mg/L in the growth medium, the content and accumulation of Cd in stem reached the highest value, which were 5672.50mg/kg and 4.93mg/plant, respectively. The results suggested that AsM was a new species of Cd hyperaccumulator, which provided a new germplasm resource for future studying the mechanism of Cd hyperaccumulation and phytoremediation of Cd contaminated soil.