1. College of Geo-exploration Science and Technology, Jilin University, Changchun 130026, China;
2. School of Forestry, Northest Forestry University, Harbin 150040, China

The Landsat 8 OLI data was used to extract hydrothermal alteration information of Changbai Mountain area by the ratio method and principal component analysis method. The extraction precision verified by the field investigation was 83.3%. Isometric partitioned weighted superposition analysis of statistical methods was used to achieve the quantitative analysis of the spatial relations between the distribution of hydrothermal alteration and the main fault zone. The results show a negative correlation between the intensity of the hydrothermal alteration and the distance from the fault, and the high intensity hydrothermal alteration occurred near the newly formed fault and intersecting zone of faults.