The CYTJ45C mining hydraulic excavation drilling rig is specially designed for short-time multi-station rock drilling. The power of the drilling rig is provided by the diesel engine-hydraulic system, with its own air compressor and on-board water tank, without additional power supply, water supply and gas supply. It is especially suitable for the crushing of ore in the low-level large block bucket and the secondary crushing of the large block of ore that cannot be transported on the ground in the natural caving method.