Abstract: The paper aims to improve the forecast ability of snowstorm and provide reference for weather disaster’s early warning which serves facility agriculture. The author summarized 25 snowstorm processes from 1955 to 2013 based on the conventional observation data and reanalysis data (horizontal resolution 1?×1?) from NCEP. The results showed that: (1) the time-space distribution of snowstorm was significant, focusing primarily on the period from October to April of the following year; (2) the style of 500 hPa was two-ridge-one-trough and ladder-groove, the style of surface weather situation was north-China cyclone, Mongolia cyclone, Changjiang-Huaihe cyclone or inverted trough, respectively; (3) a low-level jet was formed before snowfall and it offered dynamical condition and water vapor; (4) the author selected 6 forecast factors (moisture flux divergence, specific humidity at 850 hPa, K index, potential pseudo-equivalent temperature at 500 hPa, vertical velocity at 700 hPa and divergence between 500 and 850 hPa), which had apparently physical significance to snowstorm weather, to establish forecast equation of Fuxin and achieve objective forecast of snowstorm.