An electrical connector includes an insulating body and conductive terminals. The insulating body defines receiving holes, each of the receiving holes receiving a respective one of the conductive terminals. Each receiving hole includes a first hole portion, a second hole portion and a third hole portion. Each conductive terminal includes a main body, an elastic arm, and a connection portion. The main body is received in the second hole portion, the first hole portion and the third hole portion are respectively positioned on two opposite sides of the main body, and the elastic arm is at least partially positioned above the first hole portion. The insulating body includes a support portion located on a side of the main body, and the support portion and the third hole portion are located on the same side of the main body.