The present invention relates to a foot bath, and more particularly, to a foot bath which applies heat to the foot, the calf and the knee of a user sitting comfortably on a chair while minimizing thermal loss so as to provide usefulness to the user having a cold or painful knee. The foot bath of the present invention can not only be used regardless of the height difference between knees of different users but also can selectively adjust the internal temperature of the foot bath in an easy and convenient manner. A foot bath according to the present invention comprises: a main body having a guide groove formed on one side and having an interior with an accommodation space for inserting and accommodating the legs of a user a slidable board arranged to be slidable in a vertical direction along the guide groove, the slidable board having a pair of leg insertion holes spaced apart from each other to insert the respective legs of the user into the accommodation space a first heater arranged in an inner upper portion of the main body a plurality of protective horizontal boards arranged around the first heater a second heater arranged in an inner bottom portion of the main body a foothold arranged above the second heater and a control unit electrically connected to the first heater and the second heater so as to control the supply of power to the first heater and the second heater. The slidable board includes an upper plate having a pair of first grooves formed in a lower side thereof a lower plate arranged below the upper plate and having at an upper side thereof a pair of second grooves corresponding to the pair of first grooves, the second grooves forming leg insertion holes and a locking member for fastening the upper plate and the lower plate so as to be contacting each other or unfastening the upper plate and the lower plate.La présente invention concerne un bain de pied et, plus particulièrement, un bain de pied qui applique de la chaleur au pied, au mollet et au geno
