Fully automatic board jointed board assembly line

The invention discloses a fully automatic board jointed board assembly line, which includes a horizontal board jointed board machine and a vertical board jointed board machine. The horizontal board jointed board machine includes an equilateral wire adding assembly, a cutting off feeding device and a finished product cutting device, the cutting off feeding device can cut off a former board output by the equilateral wire adding assembly, and is matched with the equilateral wire adding assembly to horizontally splice the former board and a latter board conveyed by the equilateral wire adding assembly into one, the cutting off feeding device is capable of trimming and cutting the two sides of the two boards which are spliced together in the conveying direction, and outputting the two boards which are spliced together to the outside in a clamped mode; the finished product cutting device can cut off an board output by the cutting off feeding device; and the vertical board jointed board machine includes a wire addin