Abstract: The current status of landslide deformation monitoring and reliability of the data accuracy are analyzed at the high demand of the precision of landslide deformation monitoring, according to the following stages include survey evaluation, design for treatment project, construction, evaluation of prevention and controlling effects and disaster warnings. Also, the high-precision and intelligent technical solutions for landslide deformation monitoring which have been applied in practice in the monitoring of many large-complex landslides and special high-steep slopes are deeply studied. The shortcoming of conventional landslide monitoring in obtaining high-precision deformation results has been overcome, which provides efficient, reliable, and high-precision monitoring data for landslide deformation evaluation, disaster monitoring and early warning, etc. It also proposes a good work plan.