The present invention relates to a medical skin wrinkle improvement device using a peak of a laser pulse wave, and more specifically, to a medical skin wrinkle improvement device using a peak of a laser pulse wave, thereby lowering the degree of carbonization of a skin tissue having the laser irradiated thereon, thus enhancing a skin generation effect and shortening recovery time. The present invention comprises: a main body (100) which has formed on the upper part thereof a holding groove (110) having a tablet computer (200) attached/detached thereto, and which has mounted therein a controller (120) for controlling a hand piece (300) and the tablet computer (200); the hand piece (300) which comprises a laser oscillation unit (320), an optical unit (330) and a laser scanner, the laser oscillation unit (320) generating a laser to be irradiated for skin treatment, the optical unit (330) irradiating, as a parallel light, the laser generated by the laser oscillation unit (320), and the laser scanner adjusting the irradiation location of the laser transferred from the optical unit (330); and the tablet computer (200) which is provided with data input and screen display functions by means of a touch screen method, and which remotely controls the main body (100) through the transmission/reception of a bi-directional wireless signal.