Disclosed is a household hot spring, which is provided with a hot spring device. All kinds of hot spring water are prepared from warm water and hot spring medicaments so that people can bathe in the hot spring at home. In the hot spring device, according to the components and the temperature of a natural hot spring, all kinds of hot spring water are prepared from the hot spring medicaments to fit the needs of people for using different hot springs. A controller is used to control an electric water discharge valve to automatically adjust a water temperature to avoid scalding the skin of people because the temperature of the prepared hot spring water is too high. The controller is provided with a pH alarm device to avoid hurting the skin of people because the acidity or the alkalinity of the prepared hot spring water is too high. The controller is provided with a liquid level sensor for controlling the water level of the prepared hot spring water.