Abstract: Research on influence of solar activity on global climate system is gradually paid more attention in recent years. This paper reviewed studies of solar activity, snow over the Tibetan Plateau and East Asian Summer Monsoon, then pointed out the lack and necessity of explores on response of snow and East Asian Summer Monsoon to solar activity, and explored and demonstrated simultaneously the difficulty and direction of researches in this scientific area. Multi-time scales analysis indicated that the winter snow over the Tibetan Plateau had significant time-lag correlation with solar activity on interdecadal time scale. It should be paid more attention on effect of solar activity's modulation on the winter snow over the Tibetan Plateau and summer precipitation in China.