Wutai Mountain is the highest peak in North China and is significantly affected by climate warming. In order to study the snow cover change and the impact of climate warming in Wutai Mountain, the Snow Cover Area and Snow Cover Days data are obtained by gaining access to MODIS snow product combining with microwave remote sensing data. Through the spatial distribution and variation trend of snow parameters of Wutai Mountain and its response to topographic and meteorological factors from 2000 to 2020, The results are as follows: 1. Wutai Mountain has the most snow cover in the northwest, the change of Snow Cover Area is seasonal and the snow cover period is mainly from the end of October to next April. 2. The interannual variation of snow cover has a negative trend, and the interannual variation of Snow Cover Area and Snow Cover Days in each season also has a decreasing trend, which is not significant. The start of snow is significantly delayed, the end of snow is advanced and the duration of snow is shortened. 3. The Snow Cover Area decreases significantly in areas above 2500m above sea level, the fluctuant decreases in areas below 2500m, and each slop and aspect zoning show a fluctuant decreasing trend, which is not significant. Snow Cover Area is correlated with altitude and slope direction, but there is no significant correlation with slope. 4. Snow Cover Area has a significant negative correlation with temperature and precipitation in the year. On the interannual scale, the correlation between Snow Cover Area and temperature is significantly negative. Temperature is negatively correlated with snow parameters in each season, and precipitation is positively correlated with snow parameters in each season. 5. The variation trend of global snow cover and its influencing factors are basically the same as those of Wutai Mountain, but they still need to be further discussed and studied.