Abstract: In order to improve Nanfen open-pit iron of the 2^# Dump of safety management,this paper presents an application idea that "constant resistance the large deformation rope slip power monitoring and early warning system" to monitor potential landslide hazards of the open pit mine dump.The core idea is that when the dump have displacement and cracks for natural subsidence in the long-term that system can adapt the loose rock mass that can not pulled off that deformation characteristics,which can be reinforcement,monitoring and early warning to dump slope instability;the system can automatically calculate and to draw dynamic monitoring curve before the slope landslide and the process of peristaltic to landslide,the characteristics can guide production departments to develop prevention measures.The application of the system in the open pit mine dump stability monitoring field and is a new breakthrough in the monitoring history of the open pit mine dump.