The invention provides an integrated test system and relates to the technical field of automobile testing. The system comprises a complete vehicle charging test module group and an alternating currentpile charging test module group, wherein the complete vehicle charging test module group is connected with a vehicle being tested via a first charging gun, the complete vehicle charging test module group is used for simulating a charging circuit of an alternating current charging pile, alternating current charging signals to be tested are output to the first charging gun, the alternating currentpile charging test module group is connected with the alternating current charging pile being tested via a second charging gun, and the alternating current pile charging test module group is used forsimulating a charging circuit of a complete vehicle and receiving a charging current input via the second charging gun connected with the alternating current charging pile being tested. The complete vehicle charging test module group in the system disclosed in the invention is used for simulating the charging circuit of the alternating current charging pile, the alternating current charging signals to be tested are output to the first charging gun, the alternating current pile charging test module group is used for simulating the charging circuit of the complete vehicle and receiving the charging current input via the second charging gun connected with the alternating current charging pile being tested, the complete vehicle and the alternating current charging pile can be tested at the same time, and cost can be reduced.