Abstract: As a study area with Merlinmiao coal mine in Mu Us Desert, it is researched the relativity between NDVI with groundwater depth and Land surface temperature(LST), by calculating NDVI and LST, which is needed to established spatial data with the Landsat8 and groundwater depth data. It is shown that NDVI is weak positive correlation with groundwater depth table, but negative correlation with LST, when the depth of groundwater is less than 1m. The NDVI is weak negative correlation with groundwater depth table and negative correlation with LST, when the depth of groundwater is 1~2m.The NDVI has no correlation with groundwater depth table, which is negative correlation with LST, when the depth of groundwater is 2~5m. It is presented that ecology environment is the best when groundwater depth is 1~2m, which is obviously changed when the groundwater depth is over this range.