Abstract：In order to explore the dynamic mechanical behaviors of deep rock masses，multipurpose test system of deep rock mass for dynamic mechanical behaviors is developed. The system is composed of loading devices with time delay control system and measurement system，optical fiber displacement meter，acceleration transducer，charge amplifier，high speed data collection and data processing system and computer. When loading，many kinds of load combinations such as horizontal dead load，standard impact and perpendicular impact are realized. The advanced impact time is achieved by reasonably selecting test parameters such as the hammer weight，hammer height，pendulum length and pendulum angle，acting time，electronics and mechanical control devices. The practical application of these tests such as frictional coefficient measurement among rock blocks；and friction-weakening effect indicates that this system has particular structure，advanced indexes，convenient operation，in which the load can be chosen freely. This system can provide the convenience and the failure-safe test equipment to study the specific dynamic behaviors of the deep rock mass such as super-low friction，quasi-resonance specialty and pendulum mould wave.
