To provide a tip drilling cutter for pipe anchor capable of providing effective drilling capability for soil and rock when driving construction work of a pipe anchor for holding fence for preventing avalanche is done disaster prevention works carried out for an outer slope of a road.

This tip drilling cutter for pipe anchor is constituted by providing a screw part for connecting with a pipe anchor in a rear end part of a tip drilling cutter main body 1A and welding a cutting blade 1C made of special steel on circumference of an end face of a tip of the tip drilling cutter main body 1A. A cutout part 1E having substantially U-shaped side face is provided in an interval part 1D between adjacent cutting blade 1C and cutting blade 1C on circumference of the end face of the tip of the tip drilling cutter main body toward the direction of propulsion of the tip drilling cutter main body 1A.