GB/T 1932-2009 focuses on the determination of wood shrinkage. It specifies the preparation process of wood samples in detail, and has clear requirements from material selection to processing into specific sizes. In the experimental stage, the wood drying environment, Measurement time node and Measurement mode are specified. By following this standard, the size cissing of wood due to water dispersion loss can be accurately determined. This is of great significance to construction, woodworking and other industries. It can help practitioners understand the characteristics of wood shrinkage, choose wood reasonably and reserve cissing allowance in processing, effectively reduce the deformation and cracking caused by wood shrinkage, and ensure product mass.