A multi-function device for skin treatment is provided, which includes: a main body comprising a lower base, a cover coupled to an upper portion of the lower base, and a main case seated on the lower base; an IPL generator comprising: an IPL power unit comprising a main power case mounted on the main case, and a main power board housed in the main power case; an IPL coolant circulation device mounted on the main case; and an IPL connector attached to the main case, and coupled to: an IPL connection cable; a vacuum suction unit connected to an IPL handpiece and generating vacuum suction pressure; a suction cable connected to the vacuum suction unit; and a coolant connection cable connected to the IPL coolant circulation device; an IPL handpiece connected to the IPL connection cable and performing IPL treatment while being in contact with skin; a high frequency generator comprising a high frequency control board mounted on other side of the main case, and a high frequency power connected to the high frequency control board; a high frequency handpiece connected to one end of a high frequency cable that is connected to the high frequency control board, and performing high frequency treatment while being in contact with skin; and a low frequency stimulus handpiece comprising a cable connected to the main body, a handle connected to the cable, and a probe formed on an end of the handle and transmitting a low frequency stimulus to skin.