The present invention relates to a yogurt fermenting device for home use. The yogurt fermenting device (100) for home use comprises: a bottom plate (101) having an integral heating plate (101a) therein and a cylindrical wall (102) a hot-water storage container (200) configured with the inner and outer walls (102a, 102b) of the cylindrical wall (102) a lid (300) covering the yogurt fermenting device (100) and the hot-water storage tank (200) and a water-inlet stopper (400) blocking a water inlet formed on a hinge part of the lid (300). Accordingly, the present invention is advantageous in that: the fermenting device can carry out fermentation by heating the fermentation container by directly heating water by itself without separately supplying heated water, thereby producing yogurt in an easy and simple manner with a simple structure the fermenting device can continually reuse water so that the fermenting device can produce yogurt by an easy and simple method of filling the fermentation container with liquid milk and operating a water-heating switch without an inconvenience caused by the supply of water and the fermenting device is very economical in that the simple structure thereof makes it possible to reduce the manufacturing cost for the product, thereby lowering the price of the product.La présente invention concerne un dispositif de fermentation de yaourt à usage domestique. Le dispositif de fermentation de yaourt (100) à usage domestique comprend : une plaque de fond (101) comportant une plaque de chauffage intégrée (101a) à lintérieur de celle-ci et une paroi cylindrique (102) un récipient de stockage deau chaude (200) configuré avec les parois intérieure et extérieure (102a, 102b) de la paroi cylindrique (102) un couvercle (300) recouvrant le dispositif de fermentation de yaourt (100) et le réservoir de stockage deau chaude (200) et un bouchon dentrée deau (400) bloquant une entrée deau formée sur une partie charnière du couvercle (300). La présente inventio