To provide a fluid jetting device for a broaching machine capable of feeding fluid such as cutting coolant or air at uniform pressure and quantity to an outer periphery of a broach with easy clearance adjustment and easy installation.

This fluid jetting device is equipped with an axial hole 2 for passing a broach 21, a peripheral cut part 11 formed in the inner-periphery surface of the axial hole, and a fluid feeding port 8 for feeding fluid. The cut part is formed facing at least passing broaching teeth. A clearance is formed between the axial hole and the outer periphery of the broach, and the peripheral cut part is communicated with the fluid feeding port. An annular feeding passage 6 open to the peripheral cut part is formed outside the peripheral cut part and is communicate with the fluid feeding port through a communicating passage 9. The peripheral cut part forms an orthogonal plane of a conical surface relative to its axis.