Using ecological mat to control mobile sand dune can achieve outstanding effect. At first, ecological mat can effectively reduce soil temperature of the soil layer from 0 cm to 15 cm, in detailed, the average daily soil temperature can decrease 2.06 C to 4.56 C, which is benefit to reduce soil evaporation in high temperature;During the rainless period ,the soil moisture content covered by ecological mat is much higher than mobile sand, especially, the soil moisture content of the layer form 0 cm to 15 cm always keep the stable level. For the existence of ecological vegetation, the preserving ratio and growth ratio of artificial vegetation has greatly improved, which is much bigger than mobile sand. In conclusion, ecological mat combined with some biological measure can quickly and effectively restore and rebuild the degraded ecosystem of mobile sand dune.