An electrical connector includes a body, having a bottom wall and first and second side walls extending upward from the bottom wall. The bottom wall is provided with an accommodating hole, and a first supporting portion extending upward from the bottom wall to support a chip module. Multiple terminals are correspondingly accommodated in the body. One of the terminals is accommodated in the accommodating hole. A first protruding block and a second protruding block are respectively connected to the first and second side walls and extend toward each other, and each has an arc-shaped surface. The first supporting portion is connected to the first protruding block. The first supporting portion and the accommodating hole are located at two opposite sides of the first protruding block. An extending line of the second protruding block in an extending direction thereof passes above the accommodating hole.