The distribution of Liquid Water Content(LWC) on different position of Aircraft nose were numerical analysed under different flight conditions in this paper. The air-water droplet flow field was numerical simulated using Computational Fluid Dynamic method. Navier-Stokes equations were solved to obtain the air flow field, and Eulerian Method was used to obtain the water droplet trajectories. With the computational results, the shadow height of water droplet and LWC change on key section on aircraft nose were analysed under different inflight Mach number and angle of attack, and the influence of Mach number and angle of attack on LWC were studied.