Provided in the present invention is a skin therapy device, capable of fundamentally preventing damage to eyes due to light energy while enabling alternating irradiations of light having two or more wavelengths at the same time providing a weak electric stimulus, thereby providing treatment effects of light irradiation such as acne treatment, pore tightening, skin tone improvement, and skin reproduction, as well as additional treatment effects of weak electric stimuli such as inflammation improvement, skin elasticity improvement, subcutaneous treatment and thermotherapy. For the same, the provided skin therapy device according to the present invention comprises: a power supply part for supplying power； a weak electric stimulus generation part for generating a waveform to output a static electric current using the power supplied from the power supply part； a weak electric stimulus electrode part for applying the waveform generated from the weak electric stimulus generation part to a human body； a skin contact determination part, which confirms whether the weak electric stimulus is applied to the human body by the contact between the weak electric stimulus electrode part and the skin of the human body； a waveform generation part for generating a waveform using a control signal output by the skin contact determination part as the weak electric stimulus is applied to the human body； a static electric current driver for outputting a static electric current using the waveform generated from the waveform generation part, to output a predetermined amount of radiation intensity from a light source； and a light source irradiation part arranged to intensively irradiate a local part of the body with lights having two wavelengths.본 발명은 눈이 광 에너지에 의해 다치는 것을 원천적으로 방지하면서 안전하게 피부에만 두 개 이상의 파장 대역의 광을 교번 조사할 수 있도록 함과 동시에 미약 전기자극을 제공할 수 있게 하여, 각 파장 대역이 제공하는 여드름 치료, 모공 축소, 피부 톤 개선, 피부 재생 등의 치료 효과와 더불어 미약 전기가 제공하는 염증 치료, 피부탄력성 증가, 피하 및 온열 효과 등의 부가 치료 효과를 제공할 수 있는 피부 개선 치료기를 제공하기 위한 것이다.
