在城市高层和大规模建筑的基坑开挖过程中,建立基坑支护和周围环境的变形监测系统不仅是施工安全要求,也是周边环境和居民安全保障的要求。全站仪和测斜仪是目前基坑开挖监测中较为常用的仪器。本文通过对全站仪和测斜仪的观测值的误差分析和工程应用比较,分析基坑边坡位移监测中两种仪器观测值的精度和可靠性,以及在不同地质条件的基坑开挖工程中的适用性。 In the excavation process of the foundation pit of high-rise buildings and large-scale buildings in the city, it is not only the requirements of construction safety but also the requirements of the surrounding environment and residents’ security to establish the deformation monitoring system of foundation pit support and the surrounding environment. Total station and inclinometer is the more commonly used instrument in foundation pit excavation monitoring. In this paper, the total station and inclinometer observations of the error analysis and comparison of engineering applications, analysis of pit slope displacement monitoring of two instruments observed accuracy and reliability, and in different geological conditions of the excavation Applicability in engineering.