The invention discloses a half-open UV coating construction process of edge band veneer elastic finishing paint. The half-open UV coating construction process comprises the following steps: (S1) a coiled natural veneer or technical veneer base material is sanded by a special veneer sanding machine; (S2) the roll coating is performed for special veneer elastic UV putty; the coating quantity is 10-15 g/m2; double mercury lamps are used for ultraviolet drying; the drying strength is 200 mJ; and the drying time is 1-3 seconds; (S3) the roll coating is performed for special veneer elastic UV elastic primer; the coating quantity is 6-10 g/m2; then, double mercury lamps are used for ultraviolet drying; the drying strength is 200 mJ; and the drying time is 1-3 seconds; (S4) the roll coating is performed for special veneer elastic UV sanding primer; the coating quantity is 15-20 g/m2; then, double mercury lamps are used for ultraviolet drying; the drying strength is 250 mJ; and the drying time is 1-3 seconds; and the like. The construction process needs no spraying, is free of paint mist, and can be suitable for batch production; and as the roll coating is performed for UV paint on the surface of the base material, subsequent coating treatment is not needed after a wood line is coated by a veneer painted by the elastic primer and finishing paint.