The invention discloses a process for drying timber, belonging to the technical field of the processing for processing timber. Subjected to the process of rising the temperature, preserving the temperature, drying and reducing the temperature in multiple stages in different temperature states of the dry bulb and the wet bulb, the timber can not be easily dried to shrink, bend, fold and collapse, therefore, the loss rate of the timber is reduced to 8.2 percent, and the loss rate of the high-quality hard board-leaf timber is reduced to 7.2 percent.