Soil moisture is mainly replenished by rain water in the subsided area of Shenfu-dongsheng coal field.It is a crucial factor in maintaining vegetation development.By taking Daliuta coal mine for an example,soil moisture in different slope positions and layers is studied using neutron probe.Results show that in vertical direction,soil moisture increases firstly and then decreases.By using standard deviation and variation coefficient,vertical distribution of soil moisture may be divided into the rapid change layer,active layer,and stable layer.Soil moisture in the subsided area is lower than that in the non-mining area.Soil moisture is low in June and July during observation and high in May and August.Comparing with the non-mining area,soil moisture loss at the top and bottom of slope is higher in the subsided area,while it is significantly lower at the middle of slope.Mining subsidence causes soil moisture decrease significantly.