介绍了周期式短轴型木材干燥室的主要结构，分析了介质湿度调节系统在木材干燥设备工作中的重要作用，针对生产实际的效果，对湿度调节系统的设计进行了论述，并介绍了该系统的进排气道装置、增湿装置的结构设计、理论分析及设计计算方法与步骤。设计的木材干燥室设备，提高了木材干燥质量，达到了预期的效果。 The main structure of the periodic short axis wood drying chamber was introduced. The important function of the medium humidity control system in the wood drying equipment was analyzed. The design of the humidity control system was discussed according to the actual production effect. System inlet and outlet devices, humidification device structure design, theoretical analysis and design and calculation methods and steps. Designed wood drying room equipment to improve the quality of wood drying, to achieve the desired results.