The invention discloses a pre-gluing method for a pipeline joint. The method comprises the following steps: after finishing processing the joint, clearing away sharp edges and burrs of the joint, examining whether the defects of scratches and collisions exist on a thread and a sealing surface of the joint; cleaning the surface of the joint if no defects of scratches and collisions exist on the thread and the sealing surface of the joint; drying the surface of the joint; pre-gluing glue on other threads except a first thread of the joint; solidifying the surface of the glue, solidifying and drying the outer layer of the glue, and enabling the inner layer of the glue to be in an emulsion state; transporting the joint coated with the glue to an assembly field and assembling, extruding the emulsion glue in the inner layer of the glue, and filling the extruded emulsion glue in a gap of the sealing surface to form an elastic sealing tape. The operation of applying the glue on the thread of the joint is arranged after the processing of the joint, and is separated from the assembly of an engine, so that the gluing procedure does not affect the assembly efficiency of the engine.