Abstract: It is in order to extend the length of the belt conveyor, improve the driving power, increase the transportation capability, and overcome some wrong start occurred by the dynamic tension, such as sliding. The paper chooses the frequency conversion driving by comparing the driving manner. The belt conveyor has reasonable control system and middle driving tache so that it is 4658m in underground mine, which has stable performance and was passed through by the practice inspection.

Key words: long distance, frequency conversion driving, middle driving