Abstract: There is an interaction between utilizing of land resource and occurrence of geologic hazards. The formation and development of both land resource and geologic hazards are not only caused by the evolution of Earth surface system and of climato-environment, but also are affected by human activities. A series of grave geologic hazards has resulted from irrational and excessive exploit of land resource during last several decades, in reverse, the serious geologic hazards have resulted in great damages to the land resource. This is a vicious circle which will greatly hamper human social and economic sustainablly deve-lopment. Therefore, in order to reduce geologic hazards and to utilize sustainablly land resource, it would be a best choice to control human social and economic activities and to conform to natural law in utilizing land resource based on understanding of regularity of natural environment.