Abstract: Micro-drilling rack is an advanced scientific research outcome, which combines computer techniques with drilling technology,and involves monitoring techniques,mechanical techniques. The rack can be used to work on all kinds of micro-drilling experiments such as analyzing of rock sample drillability, testing of diamond tools aging and life span. According to experimental results, we can optimize diamond tools, and identify gradation of different rock sample, then improve drilling efficiency; in the same time the computer will monitor drilling process and draw corresponding dynamic relation. The rack has important meanings of manufacturing and scientific researches.