PURPOSE: To prevent lowering of appearance of a floor surface because of even a wood surface plate being varied to cope with disconnection of a built-in heater and to facilitate exchange of a heater.

CONSTITUTION: A wood heating floor material is formed such that a soaking plate 1, a heater 2, and a heater base plate 3 to support the heater 2 are incorporated in a wood floor material body 4 to form a panel. The wood floor material body 4 is formed such that a peripheral part frame 6 is arranged to the peripheral part of a wood surface plate 5 and a back plate 7 is arranged on the under surface of the peripheral part frame 6 in a manner to be removable by means of a removing means 8.The soaking plate 1 is adhered to the back of the wood surface plate 5 by means of an adhesive. The heater 2 and the heater base plate 3 to support the heater 2 are separably disposed below the soaking plate 1.