Abstract: In the construction of artificial ground freezing project,once the freezing pipe breaks,it will cause brine leakage, leading to a series of secondary disasters,endangering the safety of the project. How to judge the impact of brine leakage on frozen soil and how to deal with brine leakage reasonably and effectively has become a key issue in freezing project. Base on in-situ data of freezing project,the strength before and after the brine leakage and the attenuation of the frozen wall are compared and analyzed. The analysis results show that under a single point of 20 L leakage,the original freezing design method can be maintained without strengthening the freezing.