The invention relates to a method for thermally modifying wood by
oil palm oil. The method comprises the following steps of: stacking the wood stably, and then placing the wood stack in a treating tank; heating up the
oil palm oil and then filling to the treating tank, completely covering the wood by the
oil palm oil, heating up the wood, and keeping the temperature for 0.5-3 hours for thermally modifying the wood when the temperature of the wood reaches 200-215 DGE C; and stopping
heat supply, then discharging the oil
palm oil immediately, filling atomized water into the treating tank to gradually cool the wood, and then naturally cooling the wood to the
room temperature (30 DEG C) so as to complete the treatment. The method in the invention is simple in process; the wood is isolated from the air by the oil
palm oil; the wood is effectively prevented from oxidation and degradation; the
thermal treatment features in fast heating speed, short treating period and low cost; the treated wood features in increased size stability, small bending resistance intensity loss, high
corrosion resistance,
high intensity, good durability and the like; and the wood is convenient for industrial application, and can be widely used for the indoor and outdoor furniture, landscapes, finishing materials and the like.