Abstract: By reviewing the combination process of slope deformation and fiber optic monitoring technology，as well as the application，classification，advantages and disadvantages of existing fiber optic monitoring technology in geotechnical engineering，the advancement and importance of in the field of slope monitoring are highlighted. Through case analysis，comparative analysis and literature analysis，the existing problems of optical fiber monitoring technology are described. Through the analysis of the environment， slope stability and rock mass deformation，combined with the Internet of Things and big data，the future de velopment direction of fiber optic monitoring technology is reasonably analyzed and prospected. The results show that the optical fiber sensing technology can meet the basic requirements of slope life cycle monitoring under different conditions. Compared with the existing traditional technology，the optical fiber monitoring technology has the advantages of high sensitivity，large monitoring range and strong continuity，and has a good application prospect.

Key words: high slope, deformation of slope, fiber optic monitoring, data fusion