Disclosed is a direct insertion type plug electric connector. The direct insertion type plug electric connector comprises an insulation body, a first terminal group, a second terminal group, a grounding sheet, an upper pedestal member, a lower pedestal member, a reinforcing fixation member and a shielding housing. The first terminal group is provided with a plurality of conductive terminals, each first conductive terminal is provided with a first fixation segment and a first welding segment, and the interval between adjacent first welding segments is greater than the interval between adjacent first fixation segments. Since the interval between the first fixation segments is enlarged, the problems of short circuits, false welding and missing solder when welding terminals are welded to a circuit board are reduced.