Testing system of arc fault circuit breaker

The utility model discloses a test system of an arc fault circuit breaker, which comprises a connecting shell and a positioning mounting hole, the inner side of the connecting shell is fixedly connected with the positioning mounting hole, and the side of the positioning mounting hole is provided with a control circuit board; the first test probe is fixedly connected to the outer wall of the control circuit board, the outer side of the first test probe is connected with a connecting spring, and the top of the first test probe is provided with a second test probe; and the bearing positioning seat is arranged on the inner side of the connecting spring, and a positioning connecting block is arranged on the inner side of the bearing positioning seat. According to the test system of the arc fault circuit breaker, a first test probe, a second test probe and a connecting spring which are arranged on the control circuit board are utilized to form a conductive loop, and a logic chip on the control circuit board sends a