[Problem] To provide an electrical stimulation device that can be easily mounted and does not cause excessive pain during electrical stimulation. [Solution] The present invention is characterized by comprising a first belt electrode to be mounted on the knee of the right leg of a human body, a second belt electrode to be mounted on the knee of the left leg of the human body, and a control unit for alternately executing a first mode in which an electrical stimulus is applied using one of the first and second belt electrodes as a positive electrode and the other as a negative electrode and a second mode in which an electrical stimulus is applied using the other electrode as a positive electrode and the one electrode as a negative electrode, wherein the first mode comprises continuously performing a first stimulation pattern in which the voltage value of an electrical stimulation pulse signal is gradually increased and a second stimulation pattern in which the voltage value of an electrical stimulation pulse signal is maintained at a target voltage value, each electrical stimulation pulse signal comprises a smoothed square wave which is a square wave smoothed such that the voltage value gradually approaches a predetermined voltage value, and the second mode comprises a waveform obtained by inversion of each electrical stimulation pulse signal in the first mode.Le problème décrit par la présente invention est de fournir un dispositif de stimulation électrique qui peut être facilement monté et qui ne provoque pas de douleur excessive pendant une stimulation électrique. La présente invention est caractérisée en ce qu'elle comprend une première électrode de ceinture destinée à monter sur le genou droit d'un corps humain, une seconde électrode de ceinture à être monter sur le genou gauche du corps humain, et une unité de commande pour exécuter en alternance un premier mode dans lequel un stimulus électrique est appliqué à l'aide de l'une des première ou seconde électrodes d
