To provide an inverter device capable of protecting an inverter main circuit from a regenerative energy.

A voltage control circuit calculates a command value Vc of a voltage output to an inverter part driven by an AC motor 4 in an analog manner. Deceleration control means temporarily increases the command value Vc to a second command value higher than a first command value given in a state immediately before starting deceleration of the AC motor, immediately after starting the deceleration and then controls the command value to decrease to a third command value that is higher than the first command and lower than the second command value.