The key technology of permeable reactive barrier(PRB) and the principle of zero valent iron remediation were summarized,and the study progress and practical applications were reviewed.

• 综述可渗透反应墙(PRB)的技术关键、零价铁修复的原理和PRB的最新进展和实例应用,介绍PRB技术处理地下水的技术优势及存在问题。