Abstract:Scientific monitoring and early warning work is an important means to actively prevent landslides and other geological disasters, and it is also an effective way to guide the comprehensive prevention and control of geological disasters. A clear understanding of the development history of slope deformation monitoring technology and understanding of the development status of monitoring technology can not only fully understand the current problems in the field of slope deformation monitoring, but also inspire ideas for the development of slope deformation monitoring technology. By summarizing the types, characteristics, basic principles and using methods of current slope deformation monitoring technology, combined with the automation degree of slope deformation monitoring equipment, the slope deformation monitoring technology is divided into conventional slope deformation monitoring technology and new slope deformation monitoring technology two major categories of monitoring technology. Furthermore, it analyzes and discusses the problems existing in the monitoring theory, monitoring technology and monitoring process, and puts forward the targeted countermeasures.