The influencing factors of snow-to-liquid ratio (SLR) during a snowstorm in Shandong from 6 to 8 November 2021 are analyzed by using the data of ground meteorological observation stations, intensive ground observation data, and ECMWF (European Centre for Medium-Range Weather Forecasts) Reanalysis v5 (ERA5) hourly data (0.25°×0.25°). The results are as follows. The distribution of mean SLR in this snowstorm process is generally characterized by high in the north but low in the south, high in the west but low in the east. The SLR in the early period of the snowfall is relatively low, while it is relatively high in the middle and late period. The SLR is lower in the area with higher air temperature and higher specific cloud liquid water content than that in the area with lower air temperature and lower specific cloud liquid water content. The SLR is negatively correlated with the surface air temperature and surface temperature. The correlation between surface air temperature and SLR is the largest. After snow blankets the ground, the surface temperature has no significant correlation with the change of SLR.