A probe connector for being sucked by a suction nozzle and then soldered to a PCB by moving the suction nozzle has a barrel. One end of the barrel has a base, the other end of the barrel is formed with an opening. A periphery of the barrel has a portion protruded outwards to form a ring-shaped flange. The flange has a ring-shaped flat surface back to the base for engaging with a bottom of the suction nozzle. A probing pin includes a base portion received in the barrel and a contact portion projecting outside the barrel through the opening. An elastic element received in the barrel is disposed between the base and the base portion of the probing pin.