PROBLEM TO BE SOLVED: To provide a bath system which achieves reduced discomfort to a care receiver due to the temperature difference between the upper portion and lower portion of bathwater and improves safety by reducing a risk due to bathwater at high temperature.SOLUTION: A bath system 1 which allows the care receiver to enter and leave the inside of a bathtub using a stretcher etc. comprises: an intra-bathtub upper portion temperature sensor 16 for detecting the temperature of bathwater in the upper layer or its vicinity of the bathwater and an intra-bathtub lower portion temperature sensor 17 for detecting the temperature of the bathwater in the lower layer or its vicinity of the bathwater. On the basis of the temperatures detected by both of the sensors, the temperature difference between the bathwater in the upper layer and that in the lower layer is detected, and the temperature difference is reduced to be less than a set threshold.
