A connector comprises an insulating body and conductive terminals accommodated in the insulating body, wherein the insulating body comprises a mounting surface, a transition surface extending perpendicularly upward from the mounting surface, a mating surface that continues to extend obliquely from the transition surface, a top surface that continues to extend in a direction parallel to the mounting surface from the upper end of the mating surface, and a rear surface connecting the top surface and the mounting surface; the insulating body has an accommodating space which penetrates the mating surface and is used for accommodating a butting connector; the rear surface has a mounting groove which penetrates the rear surface and allows the terminals to be mounted into the accommodating space;and the accommodating space and the mounting groove extend perpendicular to the mating surface, thus a mold can be split along two opposite directions perpendicular to the mating surface when the insulating body is formed. Through adopting the structural design of the insulating body of the connector, the mold-splitting forming is performed in one step, thus the parts are few, and the production cost is low.