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In order to better understand the wind affects the tree architecture deformation intuitively, an efficient modeling strategy of virtual tree swaying in wind was proposed based on the analysis of the existing thought and methods to simulate the tree movement in wind. The method used procedure function with stochastic factor to simulate the wind field; and the cantilever beam was used to simulate a segment of a stem as the mechanical analysis unit, the deformation of the beam in wind force based on the theory of wind projection and beam element was computed. Then the force transmission and movement compounding method was used to solve the whole tree movement in wind. Furthermore, some software function modules, which integrated with the parametric tree modeling prototype system, were developed. Taking Phyllostachys pubescens as an example, the tree swaying was simulated in different wind velocities and with different modulus of elasticity. The result is in accordance with the practical visual effects.