Taking a certain electroplating factory as the study object, based on the site investigation and contaminative data collection, laboratory experiment of using ferric-carbon micro-electrolysis as reductant for Cr(VI)treatment was done. After determining the repair parameters, pilot test of soil washing in situ was carried out. The results of indoor laboratory experiment show that the concentration of Cr⁶⁺ was decreased form 22. 52 mg/L to 0. 012 mg/L after applying ferric-carbon micro-electrolysis for 60 min. The results of pilot test show that this project can control the contamination plume effectively. After five months, the concentrations of Cr⁶⁺ in monitoring wells were all less than 0. 05mg/L. The results of effect evaluation of groundwater restoration project show that these groundwater restoration projects can control the range and concentration of contamination plume efficiently, ensuring the safety of drinking water for residents and groundwater environment.