The invention relates to a highway and bridge maintenance and repairing technology, and discloses a construction method for concrete bridge deck repairing. The method specifically comprises the following steps that: S1: marking out a repairing boundary line of a position to be repaired and a normal position along the periphery of a crack; S2: from one end of the crack, digging a "V"-shaped groovein the repairing boundary line; S3: carrying out destructive cleaning on an old concrete structure; S4: removing concrete debris; S5: moistening a region marked by the "V"-shaped groove and the periphery of the region, and then, adsorbing water which can be seen; S6: evenly stirring repairing materials and liquids used for repairing a bridge deck; S7: pouring in the repairing materials which are evenly mixed, immediately vibrating compactly, leveling, smoothly plastering the repairing materials, removing liquids secreted from the repairing materials, carrying out smooth plastering again, and carrying out compaction and pressurization polishing on the surfaces of the repairing materials; and S8: carrying out moistening and covering maintenance. The method is favorable for repairing bridge deck cracks.