A pulp molding production line includes a forming machine, a pulp molding manipulator and a press. The pulp molding manipulator having a mounted transfer device which includes a wet blank transfer mold having an interior airtight air chamber. A front face of the wet blank transfer mold is provided with at least one recessed matching cavity that can be sleeved on an outside of a wet pulp blank product that is recessed toward the airtight air chamber, and the recessed matching cavity matches the product. An inner wall and a bottom of the recessed matching cavity are respectively provided with a plurality of small communicating holes. A back face of the wet blank transfer mold is connected to a moving frame through a guide mechanism. A driver connects between the back of the wet blank transfer mold and a moving frame which is provided with uniformly spaced vacuum cups.