To provide an electrical connector capable of easily connecting a flexible circuit board to a printed circuit board, allowing disassembly such that an electronic/electric system can be altered and improved.

This electrical connector 100 connecting the flexible circuit board 136 and the circuit board 102 has a base 108 including a bottom face for mounting the electrical connector 100 on the circuit board 102, the upper face for receiving the flexible circuit board 136, and a groove 118 penetrating the base 108 from the upper face to the bottom face. An elastomer member 122 has electroconductive interface parts 130, 132 on the bottom face side and the upper face side electrically connected to each other. The bottom face-side electroconductive interface part 130 penetrates the bottom face of the base 108 to engage with an electroconductive pad 106 on the circuit board 102. The upper face-side electroconductive interface part 132 penetrates the upper face of the base 108 to engage with an electroconductive pad 142 on the flexible circuit board 136. A cover 146 has a shape allowing snap installation to the base 108 in order to energize the flexible circuit board 136 toward the elastomer member 122.