To explore effects of collapse fissures caused by coal mining on soil water holding capacity of slope lands after rainfalls, post-rainfall dynamics of soil water in different soil layers on either side of a collaspse fissure in slope lands different in aspect was studied. Results show that on slope lands rains bring some water mainly into the 0~20 cm soil layer, but the water in the soil layer is quickly lost after the rain; after rainfall, the soil on the shady slope is higher in moisture content and soil moisture contents in the soil layers of 0~10, 10~20 and 20~40 cm differ sharply(p<0.05). Eight days after rainfall, soil moisture contents around the fissures vary greatly, especially along the edge of the upper part of a fissure, and the difference in soil moisture content between the soil of the fissure and that far from the fissure is significant (p<0.05). On sunny slopes soil moisture loss after rainfall is high and the mean soil moisture loss around the fissures may reach as high as 3.31%. It is quite obvious that the appearance of fissures to a certain extent breaks the slope rain water holding pattern and aggravates soil moisture loss in some parts of a slope, which should not be neglected in the process of revegetation and construction.