Abstract: In order to enhance the real-time performance and accuracy of the open-pit mine slope monitoring in a certain copper-cobalt mine in Africa，in response to the problems of traditional optical monitoring methods such as large workload，discontinuous and non-real-time data，and significant influ⁃ ence from environmental and human factors，a radar monitoring system was built to conduct long-distance and large-scale scanning of the monitoring area，achieving real-time，continuous，all-weather monitoring data. It effectively makes up for the deficiencies of manual point monitoring，and at the same time forms a monitoring method that combines points and surfaces，enabling mutual verification and checking of moni⁃ toring data，eliminating the limitations of a single monitoring system，and promoting the rapid implementa⁃ tion of INSAR synthetic aperture radar technology in the safe production of overseas mines.

Key words: open-pit mine, slope monitoring, radar monitoring system, synthetic aperture radar