The stability of high slope is a complicated problem in geomechanics
in which field that lots of factors may be involved; so the in-situ monitoring has become an important measure to ensure its safety. Related to a practical project
and based on the analysis of data that have been collected about the deformation of slope and the stress of support units
the stability of high slope during the period of construction and operative process is analyzed; and various influencing factors for the stability of high slope have been brought forward. These conclusions have provided a reference for similar projects.