The invention relates to a stereo circuit connector, in particular to a flat electrical connection mode which is separated from a PCB provided for electronic device connection. The connector provided by the invention comprises a plurality of random curved setting connection units with connection points; the plurality of random curved setting connection units are connected with one another through the connection points; each random curved setting connection unit comprises a male connection unit and a female connection unit; each male connection unit comprises a plurality of male terminal carriers; each male terminal carrier is provided with a plurality of male connection points; each female connection unit comprises a plurality of female terminal carriers; and each female terminal carrier is provided with female connection points which correspond to the male connection points in position and are equal to the male connection points in number. According to the stereo circuit connector, series-parallel connection can be finished with a limited space; the structure can be self-set according to the requirements; and by the connection mode which is separated from the PCB, the product structure framework and space are effectively utilized to install electronic devices.