In order to improve the automation level of wooden door leaf processing, according to the characteristics of the side of the wooden door leaf and the requirements of the paint finishing process, a UV paint vertical roller coating machine for the side of the wooden door leaf was designed and developed. The structure and function of the vertical roller coating machine were emphatically introduced. The equipment could complete the side sanding, chamfer milling, vertical roller coating, and paint drying and curing. The adhesive force of varnish met national level 1 requirement in GB/T 4893.4—20 l3 Physical and chemical properties test of paint film on furniture surface-Part 4 Determination of adhesion by cross-cutting.