Abstract: Xanthoceras sorbifolia is an important part of the development of Xinjiang’s characteristic forest fruit, and it will maximize the filling of China’s edible vegetable oil gap. Due to the difficulty of peeling the hard fruit skin of Xanthoceras sorbifolia, the efficiency of manual fruit cutting and processing is low and the cost is high, and there is a lack of machinery in China to meet the technical requirements of Xanthoceras sorbifolia shell breaking. Based on the physical and mechanical properties of Xanthoceras sorbifolia, this paper designs a Xanthoceras sorbifolia shelling machine that can complete sorting and separation in one. The combination of three-leaf rotating beating plate and extrusion drum is used for secondary shelling, which can effectively separate the fruit shell and kernel. After multiple experiments and appropriate structural parameter design, the shelling rate and quality of Xanthoceras sorbifolia were successfully improved, and labor intensity and processing cost were reduced. SolidWorks-Simulation static stress new calculation program was used for static mechanical simulation characteristic analysis. Among them, the maximum strain of the three-leaf beating plate is 60 MPa, which is within the material yield strength, and the maximum displacement and strain were 0.30 mm and 0.34 MPa within the yield strength of the material, which met the material strength requirements. Through the design and optimization of the structural parameters of the shell breaking machine, it is greatly convenient for people to eat Wenguan fruit, and reduces the labor intensity and processing cost.