The precipitation process of a wintertime cold front in the Taiwan Strait was simulated based on the mesoscale model WRF,combined with FY-2E satellite image and the conventional observation data.Conclusions are as follows:1)The microphysics scheme is sensitive to the simulation of winter cold front in the Taiwan Strait,and Milbrandt double-moment microphysical scheme can successfully reproduce the hierarchy of cloud system,the ice-phase precipitation process and the convective development of clouds,which is more superior than other microphysical schemes for the simulations of 24 hours accumulated precipitation.2)The mixing ratio of precipitation particles(rain,snow and graupel) of frontal zone is larger than that of the post-frontal part.The rain band of frontal zone gathers in the middle of surface frontal line,and the post-frontal rain band is deflected to the southwest cold region.3)The near frontal zone clouds are influenced by the low-level jet stream and the orographic uplift in the middle of Taiwan Island,therefore it results in a strong precipitation center generating in the windward slope,which corresponds to the high content area of graupel in the air.4)High equivalent potential temperature,strong convergence,positive vorticity and convective instability at the lower level accompanied by strong divergence and negative vorticity at the higher level is the major reason for the maintenance and development of the cold frontal clouds.