Abstract: The integration of detection，stability monitoring and handling technology of mined-out area in Luomu open-pit mine are introduced.The high-density electrical and seismic imaging method are used to preliminarily detect the position of gobs，and then the drilling exploration and three-dimensional laser detection methods are adopted to detect the accurate characteristics of gobs.Microseismic technology is used for all-day，three-dimensional and real-time monitoring on the gob stability.It makes a very good application effect on the stability quantitative analysis，the influence of blasting vibration to the gobs and the stability monitoring in the processing of handling gobs.The gravel filling and controlled blasting technology is adopted to treat different gobs.According to characteristics of mined-out areas and the difficulty in gob handing，gobs are treated once or several times to finish the handling.With the use of this integrated technology，a large number of gobs in Luomu open-pit mine have been successfully treated.It ensures the safety production，and has vital significance for the sustainable development of mine.Moreover，it has important reference value to the similar mine at home and abroad.

Key words: Complex mined-out area, Detection of gob, Microseismic monitoring, Handling of gob