Abstract: Investigations were conducted on soil physiochemical properties in August of 2014 at dump slope planted in different year by Hippophaerhamnoides of Huolinhe Coal Company of Inner Mongolia Autonomous Region. Analysis were made on soil samples from different plantations of H.rhamnoides, earthing area and natural grassland for comparisons. The results showed that and content occupied the largest part and fine silt contentand the least at tested sample plots. Sand content decreased significantly (P<0.05) and clay content increased at plantations after 7 years. With theincrease of planting years, the content of soil organic matter, alkali-hydrolyzable nitrogen, available potassium at surface layers increased gradually,pH neutral, and the available phosphorus increased and then decreased. Pearson’s correlation coefficient analysis demonstrated thatalkali-hydrolyzable nitrogen and available potassium had significantly negative correlation with soil pH and sand content, but significantly positivecorrelation with the content of organic matter. Available phosphorus had significantly positive correlation with the content of coarse silt. Theinvestigation resulted that planting H.rhamnoides at dump slope in Inner Mongolia could effectively improve the soil quality.