Abstract: Stabilization technology has been used commonly in remediating lead contaminated site，as its low cost，excellent efficiency and low secondary pollution risk． In this study，three remediation reagents for lead stabilization，reagent A to form phosphate precipitation，reagent B to form sulfide precipitation，and reagent C to form stable chelate complex with lead ion， have been compared and studied，respectively． According to the results，reagent A has better effect for Pb stabilization． For treating lead contaminated soil with leaching concentration within 20 mg /L and around 90 mg /L，suggested addition ratio could be 8% and 13%，respectively． Based on the project experiences from BCEG Environmental Remediation Co． ，Ltd，the recommended addition ratios were 10% and 15% respectively for guaranteeing engineering quality． The results could provide references for the later application of stabilization technology for lead contaminated soil．