Groundwater pollution remediation method

Belonging to the groundwater pollution field, the invention discloses a groundwater pollution remediation method. The method includes: excavating a guide wall along the cross section on a groundwaterpollution runoff channel; and performing stratified laying of a repair layer within the guide wall, wherein the repair layer successively comprises an ore layer, a medicament layer, an activated carbon layer and a microbial layer along the groundwater flow direction, the microbial layer is provided with a gas inlet, and the microbial layer includes physalospora, bacillus subtilis and humus soil. According to the invention, firstly the ore layer is utilized for filtration, then the medicament layer is employed for adjustment, and the microbial layer is adopted for decomposition and adsorption of soil and groundwater, and then the activated carbon layer is utilized for decomposition and adsorption purification, therefore the method can realize adsorption of heavy metal ions, degradation of organic matters in water,