High-stress rock drilling testing device

The invention discloses a high-stress rock drilling testing device which can be applied to impact drilling experiments of high-stress rocks and belongs to the field of rock mechanic study. The high-stress rock drilling testing device mainly comprises an automatic lifting mechanism (1), a wire cable (2), tongs (6), a drill rod (7), a drill (11), a pressurizing piston (14), a high-pressure oil cylinder (15), an oil pressure control element (16) and a pressure gage (17). According to the high-stress rock drilling testing device, high-stress strained conditions of underground deep rocks can be achieved in laboratories, the impact drilling experiments can be finished, impact destroy characteristics of the high-stress rocks and drilling performances and abrasion parameters of a drilling tool can be obtained, and the unique high-stress rock drilling testing device is provided for deep rock mechanic study.