To provide a gas jetting nozzle capable of easily controlling a flow rate at a low cost.

A gas levitation stage levitates and moves a substrate by blowing gas jets from a number of gas feeding nozzles onto a lower surface of the substrate. The gas feeding nozzle is provided with a spiral part formed in a female screw formation process in a gas flow channel. Since the gas jetting nozzle having a spiral part is formed in the female screw formation process, it can be easily formed on the entire surface of the stage at a low cost, and its flow rate can be controlled by the spiral part.