Abstract: Frozen snow is an important solid fresh water resource in the world, which plays an important role in water distribution and use.Along with global climate warming, more and more emphasis has been put on the use of snow resources.In this paper, we reviewed relevant researches on the ecological effect of snow, and focused on the correlation about snow ablation, seasonal frost soil, vegetation, soil microorganism and snowmelt runoff.Based on the exiting conclusions, as a key factor, the depth and duration of snow strongly affects the evolution and nutrient requirements of soil microbes and moisture-heat in ecosystems; snow could affect soil respiration, changes the carbon cycle and generates a further affect on plant growth and community composition; in turn, vegetation could effect processes of snow falling and melting by altering surface cover, wind direction and interception of snow.The paper provides a guideline for studying the ecological impact of snow, and proposes some suggestions about snow resources research in in the future.