Abstract: The CFD method was applied to solve the refueling docking at different docking velocities. The Osher scheme and S-A turbulence model were used to solve the compressible Navier-Stokes equations, and the Delaunay mapping dynamic grid method was employed the flexible deformation of the hose in the numerical implementation. The hose was discretized into a series of ball hinges linked by massless rigid links which form a multi-body the kinematical and dynamic equations were then derived for the system. All the numerical results show that the refueling docking velocity is very crucial for aerial refueling. When the docking velocity is lower than 3 m/s, the refueling drogue will move upward with obvious cycle staggering, compared with slight cycle staggering at the speed of 3m/s, which makes it much easier to refuel. Results of this study may have certain reference significance for the drogue-probe aerial refueling.