Multi-layer solid wood board has the characteristics of not easy to deform and good performance of adjusting indoor temperature and humidity. The surface solid wood veneer material has the texture and feel of natural real wood, so it is more selective. Therefore, it is favored by consumers. Multi-layer solid wood board has good structural stability and is not easy to deform. Due to vertical and horizontal gluing, high temperature and high pressure, the deformation defect of solid wood board has been solved from the aspect of internal stress. In the production process, the self-made high-quality environmental protection adhesive is used to make the formaldehyde emission limit of the product meet the national standard requirements, which is green and environmentally friendly.