Abstract: In the temperate deserts, the snow nearest a plant melts at first then the snow around it follows. And as the water flow passage to soil appears, which centres at the plant and collects the snowmelt to water the plant, the depth of the wet sands is increased.Data on sampling area indicates that the sand moisture around the plants incresses obviously: the amount of snowmelt collected by the plant root zone is 56.77mm, which is 228.9% of the snowmelt received by bare area. The utilization efficiency of snowmelt for desert plants is improved as the moisture moved from upper soil layer to deep soil. As a result, the distribution pattern of desert plants is arranged.