The utility model discloses a crawler-type hydraulic down-the-hole drill, which comprises a crawler-type vehicle body, a first hydraulic cylinder and a second hydraulic cylinder, the big arm is hingedto the crawler-type vehicle body, the big arm is driven by a first hydraulic cylinder to rotate around a hinge point, and a first connecting piece is hinged to the end of the big arm; the second hydraulic cylinder is fixed to the middle of the big arm, and the driving end of the second hydraulic cylinder is connected with one end of the first connecting piece so as to drive the first connecting piece to rotate around a hinge point; the third hydraulic cylinder is fixed with the other end of the first connecting piece; and the down-the-hole drill hydraulic drill rod is fixed to the driving endof the third hydraulic cylinder through a second connecting piece to drive the down-the-hole drill hydraulic drill rod to move front and back, the down-the-hole drill hydraulic drill rod is driven byan air compressor to work, and a drill bit is arranged at one end of the down-the-hole drill hydraulic drill rod. Interference on surrounding buildings is reduced, construction noise is controlled, tunneling of a tunnel body is accelerated, the design target is achieved, and remarkable social benefits and economic benefits are achieved.