Abstract: In recent years,China adheres to the road of ecological priority and green development,but the open-pit mining is prone to cause surface damage,environmental pollution and other issues.How to implement effective monitor of open-pit mining is very important to improve the level of mining administration and environmental protection.Based on multi-source data such as geographic national conditions monitoring,the third national land survey image and recent domestic images,this paper adopts the technical architecture of FME (Feature Manipulate Engine)+ArcGIS to form a method of large-scale,rapid monitoring of open-pit mining sites.The method is applied to monitor open-pit mines in Gansu province from 2017 to 2019.The results show that the method realizes the rapid positioning of the changed open-pit mining points,and extracts the land coverage of the changed open-pit mining points.The changes in the land coverage reflect the land use changes of the open-pit mining points,and combines with the remote sensing images of different periods,which shows the changes in a comprehensive way.This method can provide technical support for management of mines and realizing the green and sustainable development of mines.