This paper is the result of the water resources and environmental geological survey engineering.

Objective The investigation and remediation of groundwater pollution in China has been paid more attention by the scientific community. Understanding and mastering the methods and technologies of groundwater pollution remediation is helpful for the scientific remediation of polluted sites.

Methods Based on the systematic analysis of groundwater pollution remediation cases at home and abroad, this paper summarizes the technical methods implemented on the groundwater pollution remediation site in China.

Results Combining the characteristics of China's regional economic development and the results of groundwater pollution investigation and evaluation, it is believed that the complex hydrogeological conditions are restricted, and the pollutants are affected by the heterogeneity of groundwater velocity, flow direction and permeability coefficient, which makes the restored site appear tailing. and rebound; pollutants are restricted by the lithology of aquifers, and the adhesion and desorption of pollutants and low-permeability rock and soil often generate secondary pollution; Groundwater quality assessment, groundwater pollution health risk assessment, and pollution degree assessment provide a scientific basis for the development and completion of restoration projects.

Conclusions Groundwater pollution remediation in China faces opportunities and challenges in the coordination of methods and technical methods. Groundwater pollution remediation needs to rely on aquifer lithology and hydrogeological conditions.