To provide an ion generating device which can emit both ions of positive ion and negative ion stably even in a high humid environment without making the device large-sized, and an electric equipment having this.

A switch 17 for switching over in order to make the absolute value of a voltage impressed between a discharge electrode 12a and an induction electrode 12b of a second discharge part 12 larger than or nearly same as the absolute value of the voltage impressed between the discharge electrode 11a and the induction electrode 11b of a first discharge part 11 is installed in a voltage impression circuit 20a which impresses a prescribed voltage between the first discharge part 11 and the second discharge part 12, so that a positive ion may be emitted from the first discharge part 11 of an ion generating element 10 and a negative ion may be emitted from the second discharge part 12. A microcomputer 30 controls the switch 17 based on the humidity data from a humidity sensor 31 and switches over in order to give discharge energy of a capacitor 4 to any of primary coils of step-up transformers 9, 29 having different transforming ratio.