Abstract: has always been an important task for mine technicians. In view of a series of difficulties brought by the complex hydrological and geological conditions of a skarn type with large water inflow iron ore deposit to production，the research on ore supply and distribution technology was carried out. Through the establishment of a three-dimensional ore distribution model，the distribution law of ore quantity and quality was analyzed and studied，the cut-off grade of ore extraction at the working face of the mine room was clarified，and the on-site ore supply and distribution process and process of ore and rock chute dumping，electric locomotive feeding in sections，and skip normal lifting were formulated，As far as possible， the ore rock segmentation proportion is expanded in the main pass to maximize the separation of ore rock. At the same time，the early warning and adjustment mechanism for ore supply and distribution was established，and the emergency treatment plan after a large fluctuation of ore drawing grade was defined. Through tackling key problems，the quality of ore extracted was stabilized，the recovery rate of beneficiation was improved，and the dilution rate of ore was reduced. The precautions in modeling and implementation were shared，which provided a reference for the supply and distribution of skarn iron ore.

Key words: skarn iron ore, ore supply and distribution, three-dimensional technology