PURPOSE: To provide a wet compress treatment device which facilitates fine adjustment of a wet compress temp. and the ejection rate of steam for wet compress and to execute wet compressing by using a wet compress means suitable for the lesion.

CONSTITUTION: The wet compress liquid consisting of vinegar, a hot spring, mineral spring, etc., housed in a first tank 34 for steam generation or a second tank 32 for steam generation is effectively evaporated to steam and to elevate the temp. of the contact part 73 of the lesion to the most desirable temp. by properly selecting and using a high-output heater 12 and low-output heater 13. As a result, the effective wet compressing is executed. Since plural kinds of the wet compress means 9 are prepd., the wet compressing by using the wet compress means 9 meeting the lesion is executed and, therefore, the effective wet compress is possible.