Board splicing machine

A board splicing machine comprises an alignment device which comprises an alignment platform, an alignment press plate and push plates, wherein the alignment press plate is disposed above and is parallel to the alignment platform, a gap is left between the alignment press plate and the alignment platform so as to form an alignment space, the height of the alignment space can be configured according to the thickness of strips, and the push plates can horizontally move inside the alignment space, thus to push the strips into the alignment space. According to the board splicing machine provided by the present invention, the height of the alignment space where the strips are aligned is limited, rolling of the strips during alignment is prevented, thickness smoothness of board materials after alignment is ensured, and the quality is stable.