To provide a foot warm bath which allows feet to be bathed in hot water and cold water by turns with a simple structure and has an effect to improve the circulation of the blood.

The food warm bath includes: a foot bathtub 2 with its upper surface opened; a heating means 6 for heating water stored in the foot bathtub 2; a temperature detecting means 7 for detecting water temperature in the foot bathtub 2; and a control means 17 for controlling an amount of heat of the heating means 6 according to an output of the temperature detecting means 7. In the foot bath, a low temperature tub 4 is formed by forming a partition 3 which prevents stored water in the foot bathtub 2 from flowing is formed at a part of an almost central part of the foot bathtub 2. Also, a link port 14 and a valve 16 for opening/closing the link port 14 are provided between a bottom part of the foot bathtub 2 and the low temperature tub 4.