Abstract: A non-contact type shaft sealing device comprising a stationary sealing ring (9) disposed to axially oppose a rotational sealing ring (2) provided on a rotational shaft (1) of a device that will be shaft-sealed, wherein a number n of air inlets (9b) provided in the stationary sealing ring (9) is in a range of 3 to 24; a bore diameter d of a throttling mechanism provided in each of the air inlets (9b) is in a range of 0.05 to 3 mm; and concurrently, a dimensionless quantity &agr; defined as &agr;=8 hD/nd2 where h=inter-sealing-surface gap, and D=shaft diameter, is 1≦&agr;≦200. Thereby, ensuring stable sealing characteristics in the non-contact type shaft sealing device, and furthermore, minimizing consumption of a barrier gas to be fed through the air inlets (9b).