Through the laboratory and field tests, the measurements of such 9 parameters as wave impedance, blasting index have been carried out, so that a large number of tested data have been obtained. The internal relations of the 9 parameters have been analyzed. It is considered that the tested values of wave impedance can be used to preliminarily evaluate the drillability of ore/rock, and the hardness of roe/rock can be classified into seven levels. A conclusion is drawn that the ore/rock of the No.92 orebody is easy to blast but difficult to drill.