In order to maximize spatial utilization and to minimize the volume of a thermotherapy bed so that the thermotherapy bed can be easily stored or moved, the thermotherapy bed includes: a bed body having a thermotherapy device placed therein; side frames connected to both side surfaces of the bed body, respectively; and bed legs configured to support the bed body and connected to the side frames, respectively, wherein the thermotherapy device is placed in a center of the bed body and forms a protrusion on a bottom surface of the bed body, and the bed legs are folded to face an inside of the bed body and are accommodated in spaces formed at both sides of the thermotherapy device.