The invention discloses a lamination reforming hydrogen production reactor, which comprises catalyzing boards (10), heat absorbing boards (30), and a shell board (50). Catalyst layers (11) coat large planes of the catalyzing boards (10), and two side edges of the large planes of the catalyzing boards (10) and the heat absorbing boards (30) are in staggered lamination arrangement. The shell board (50) surrounds the catalyzing boards (10) and the heat absorbing boards (30). Rooms where the catalyzing boards (10) are are set as reforming reaction chambers (20), and rooms where the heat absorbing boards (30) are are set as heat absorbing chambers (40). The catalyzing boards are coated with catalyst layers and are in lamination arrangement, so that dust produced from squeezing of catalyst layers is avoided. The problem that hydrogen produced by a reforming hydrogen production reactor in the prior art carries dust is overcome. The lamination reforming hydrogen production reactor is mainly applied to a reforming hydrogen production device, particularly to a on-site reforming hydrogen production device, which is used through combination with a fuel cell.