In view of reality that the software for geotechnical engineering monitoring only can be used to initially process and analyze monitored data at present stage,a monitoring information management system was developed,which can identify erroneous data according to Gaussian distribution and make preliminary analysis on the causes of abnormal deformation.The system is of friendly interface、strong applicability and well extensibility as well as strong recovering ability to illegal operation from user.The application method,characteristics and function of the system are detailedly introduced in this paper.