Abstract: Xanthoceras sorbifolium‘Senmiao Jinziguan’is a new yellowhorn cultivar by single-plant selection from seedlings. Leaflet is ovate，deeply lobed and edge curl outward. Young twig is purplish red.Flower is luxuriant. The petal color constantly changed with the prolongation of blossom，it was yellow in early blossom，then gradually change to red，and in late blossom it became purple slowly. At full-bloom stage，there were yellow，red and purple florets in the same plant. Usually the fruit is columnar and low yield. The average seeds number in each capsule is 10.52. The mature seeds are brown，and the average weight of 1 000 seeds is 1 033.95 g. The suitable cultivation area are Ningxia，Inner Mongolia，Shaanxi，Gansu and other main planting area of yellowhorn for landscaping and ornamental.

Key words: yellowhorn, landscaping, cultivar