The invention relates to an automatic batten plate splicing machine which comprises a work frame, a feeding device, a pressing wheel buffering device, a gluing device, a sawing device, a one-way pushing device, a plate pushing device, an electrical automatic control system and a main conveying belt. The tail end of the main conveying belt is provided with a limiting mechanism. The pressing wheel buffering device comprises a power mechanism, a moving mechanism and a transmission mechanism. A buffer drives rotating shafts to move vertically through a connecting piece to buffer vertical displacement changes, brought by movement, of rolling pressing wheels. The automatic batten plate splicing machine is reasonable in structure, ingenious in design, capable of conducting discharging conveniently, high in conveying speed and stable; plate splicing and gluing are integrated; a buffering mechanism is arranged so that the service life can be effectively prolonged, and the technical problems that in an existing batten plate splicing machine, discharging is not stable, battens are likely to be stacked, the conveying speed is too low, noise is large, battens need to be glued in advance for standby use, manual work is wasted, and the service life is affected are solved; and the automatic batten plate splicing machine is an important technical innovation for the prior art and has very good market prospects and development space.