Provided is an iontophoresis device. An iontophoresis device according to an embodiment of the present invention includes a power supply unit configured to supply power; two electrodes configured to supply current to a user's skin when brought into contact with the skin, thereby allowing an ionic drug or an active ingredient applied to the user's skin to permeate the skin by an electrical repulsive force; and a control unit configured to adjust an output value of a voltage or a current applied to the electrodes according to the user's skin condition, thereby allowing the user to feel a uniform intensity of electrical stimulation.