Abstract: In order to timely，efficiently and accuratly obtaining the key information，such as geological grade information，regional plan，borehole，profile data and perforation grade information，the geological prediction system for comprehensive ore blending is developed integrally based on GPS，GIS，mobile 4G technology and CAD software，ArcGIS software and geo-survey and mining software，so as to provide field ore blending guidance for geological workers to realize the functions of on-site location of ore blending，on-site drawing viewing，real-time viewing of geological grade information and perforated grade information，on-site delineation of ore-rock boundary，etc.The overall architecture design and functional design of the system are analyzed in detail，besides that，the application effects of the system is analyzed based on the on-site practice of Nanshan Mine.The study results show that through the system，the key information can be obtained in real time at the ore blending on-site，the precise demarcation of ore and rock boundaries can be realized，besides that，the maximum fluctuation range of raw ore grade from the target grade can be lowered.

Key words: Comprehensive ore blending, Geological prediction system, On-site ore blending, Quick report of grade, Demarcation of ore and rock boundary