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Abstract. In the process of Camellia oleifera fruit harvesting by vibration, inappropriate vibration frequency will lead to undesirable harvesting efficiency. In order to determine the appropriate vibration frequency for Camellia oleifera fruit harvesting, the dynamics characteristics of Camellia oleifera tree were analyzed in this study. The 3D models of three Camellia oleifera trees with same age but different crown shapes were established by SolidWorks, and modal analysis and harmonic response analysis were carried out by ANSYS. The results show that the low-order modal frequencies are similar for the established tree models and have little correlation with the tree crown shapes. The harmonic response of the trees in the low frequency region is large and decreases with the increasing of frequency. The field modal experiment of the Camellia oleifera trees with different crown shapes were carried out, and the relative error between the experiment results and the simulation analysis results was less than 6.4%, which shows that the Camellia oleifera tree models in different tree crown shapes are correct. The same excitation frequency can be applied to the Camellia oleifera trees without considering the tree crown shapes.