The equations of the two-dimension heat transfer processes in wood were deduced by using Galerkin’s Method of Weighted Residual Method of Finite Element Method (FEM) in this paper. The heat transfer processes were calculated by using computer program according to the heating case. The experimental species was Larix dahurica. At first the transverse thermal conductivities and heat transfer coefficient of the species were determined using a Heat Conductograph DRM-1. Then the heat source was mounted on the experimental samples and the temperatures at different points in the sample were determined in time intervals of 0.5 h. The calculated temperatures were compared with the determined temperatures, and it was found that the deviations were generally less than 10%. Therefore, the conclusion that heat transfer processes in wood can be analysed by FEM is substanciated.