Under the concept of sustainable development,the pollution control measures of industrial sites have been continuously reformed.As the process of economic development has brought serious environmental pollution problems,in order to meet the development requirements of the current era,we should pay attention to pollution control in economic construction,hydrogeological survey plays an important role in the investigation of polluted sites,and the investigation based on the different physical and chemical properties of different soil layers can effectively improve the accuracy of site pollution investigation,obtain comprehensive data information,generate high-visibility survey results,and reduce resource loss.In the hydrogeological survey,it is necessary to grasp the key points of technical application of polluted site investigation,follow different sampling principles for different areas,collect and preserve hydrogeological samples,and improve the hydrogeological survey system,so as to make the role of hydrogeological survey really played and realize the effective improvement of people's living environment while ensuring the efficient treatment of polluted areas.