In this review,the literatures on vacuum drying of wood at home and abroad were reviewed,the principle of vacuum drying of wood was elaborated,the characteristics of vacuum drying at home and abroad in recent years were summarized,and the characteristics of vacuum drying in terms of drying time,energy consumption,pollution degree,fi-nal moisture content of wood and its distribution,color of wood,physical and mechanical properties,as well as deforma-tion and cracking were introduced.The vacuum drying methods can be divided into three categories according to the heat transfer methods,and the characteristics and advantages of different heat transfer methods were analyzed.The results showed that compared with traditional drying methods,vacuum drying has obvious advantages such as low energy con-sumption,short drying period and better drying quality.Therefore,the continued promotion and application of wood vac-uum drying technology in wood industrial production will help promote the high-quality development of the wood indus-try.These research results are expected to provide a strong reference for the industrial promotion and theoretical research of vacuum drying of wood.
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