Abstract: ‘Zhongshi 4’and‘Zhongshi 9’are new cultivars which are selected from seedling populations of Xanthoceras sorbifolium. They have the characteristics of strong tree vigor，rapid growth， high yield and high resistance. They have 60% ratio of female flowers. They have single petal flowers and large single grain weight，all of which are over 1.5 g，and the oil content of seed kernels is above 65%. The current-year branch of‘Zhongshi 4’is hairy and green. The mature leaves of‘Zhongshi 4’showed obvious wax and strong luster on the surface. The capsule of‘Zhongshi 4’is globose，medium in size and shell thickness. The current-year branch of‘Zhongshi 9’is glabrous and purplish red. The mature leaves of‘Zhongshi 9’don’t have wax. The capsule of‘Zhongshi 9’is prismatic and large with a thick shell. The full bloom stage of‘Zhongshi 4’and‘Zhongshi 9’starts at the early and middle of May，and the fruit maturity begins early and middle of August in Liaoning. The fruit development period is about 75 days. They can be widely planted in Northeast，Northwest，and Northern China.

Key words: Xanthoceras sorbifolium, single grain weight, oil content, waxy