The present invention relates to a manufacturing method for an electrical connector, comprising the following steps: providing a first strip, a second strip, and a plurality of grounding terminals, power terminals and signal terminals which are located between the first strip and the second strip; forming a first body and a second body onto the grounding terminals, the power terminals and the signal terminals by insert-molding, wherein each grounding terminal comprises an exposed upper contacting portion, an exposed lower contacting portion and a first connecting portion located between the first body and the second body; bending the first connecting portions, assembling a shielding plate into the accommodating space; and forming an insulation block onto the first body and the second body by an insert-molding.