Taking into account the ore drawing features in the block caving system, a microcomputer is used to arrange monthly drawing plans, give daily and monthly ore-drawing instructions, and collect statistics on the basis of each day, each week, each month and total ore-drawing amount. The successful application of this computerized ore drawing control system to the unstable orebody at Lizhu Iron Ore Mine has raised the apparent ore recovery up to 100% and has resulted in the ore dilution rate less than 20%. Further, ore drawing control can be automatized by means of artificial intelligence, thus bringing better scientific management to the mining operation.