The invention discloses a universal type drilling tool fisher and a fishing method thereof. The universal type drilling tool fisher includes an outer pipe, a reducing connecting pipe and a sleeve, anannular lead piston capable of axial movement, an inner pipe with a water leading hole in the side wall, and a hollow piston rod capable of axial movement successively and coaxially sleeve the interior of the outer pipe from outside to inside, end covers with water inlet passages are arranged at the end of the hollow piston rod and the end of the annular lead piston, the tail of the hollow pistonrod is connected with a coaxial core rod, the end of the core rod is the enlarged end, an elastic clamping jaw sleeves the exterior of the core rod, and the clamping jaw end of the elastic clamping jaw is arranged around the enlarged end of the core rod. The universal type drilling tool fisher is used for quick salvage of drilling tool breaking or falling and other accidents in the process of drilling, quick and reliable connection between the fisher and a broken drilling tool is realized by clamping the inner wall of the drilling tool through the elastic clamping jaw and locking the core rodthrough a limiting bead, and secondary falling of the drilling tool in the salvage process is avoided; and the function of unclamping is further achieved, if the situation in a hole is complex, the fisher can be quickly separated from the broken drilling tool to prevent the accident from worsening, and the loss is reduced.