The present invention provides a plasma discharged skin treatment device. The plasma discharged skin treatment device of present invention includes a first insulator, a first electrode provided on one surface of the first insulator, a second insulator provided on one surface of the first electrode, a second electrode provided on one surface of the second insulator, and a third insulator provided on one surface of the second electrode to face a skin of a user, wherein a plasma is generated by a power applied between the first electrode and the second electrode. According to the present invention, there is provided a large-area plasma discharged skin treatment device which is capable of being flexibly deformed along a facial surface of a user while allowing to be semipermanently used. In addition, according to the present invention, there is provided a large-area plasma discharged skin treatment device which is capable of enhancing effects of moisturizing a skin and penetrating a drug into the skin through skin stimulation caused by visible rays, infrared rays, plasma ions, and active species generated from plasma, and allowing a wound to be treated on a skin portion of a body such as a neck, waist, arm, leg and the like when using the device on the corresponding portion.