Abstract: In recent years, with the development of China's economy, China's construction industry is developing rapidly, the building structure is more and more complex, the building volume is more and more large, which makes the foundation construction of construction engineering more and more complex. In the construction, in order to ensure the safety of foundation construction and improve the stability of the foundation pit, it is necessary to pay attention to the foundation pit support technology, do a good job of foundation pit monitoring, observe the displacement and settlement of the foundation pit, and avoid major safety accidents and safety problems caused by the foundation pit instability. In order to improve the effect of foundation pit monitoring, it is necessary to master the characteristics of foundation pit monitoring construction technology, prepare a complete foundation pit monitoring program, and ensure the stability and safety of the foundation pit. Based on this, this paper analyzes the characteristics and contents of the construction technology of foundation pit monitoring in the construction project of Shijiazhuang Railway University Science and technology experimental building.