The invention relates to the technical field of a power supply system and especially relates to a charge-discharge multiple-effect circuit. The invention provides the charge-discharge multiple-effect circuit, which comprises photovoltaic power generation portions G1...Gn, equal-capacity energy storage rechargeable-dischargeable batteries B1 and B2, interlocking linkage switches K1 and K2, fast diodes D1 and D2, synchronous-off switches K3 and K4 and a load L. The charge-discharge multiple-effect circuit is mainly characterized in that the positive electrodes of the G1...Gn, the positive electrodes of the batteries B1 and B2 and the positive electrode of the load L are connected; the negative electrodes of the G1...Gn are connected with one end of the K1 and one end of the K2; the other end of the K1, the negative electrode of the B1, the negative electrode of the D1 and one end of the K3 are connected; the other end of the K2, the negative electrode of the B2, the negative electrode of the D2 and one end of the K4 are connected; the positive electrode of the D1, the positive electrode of the D2 and an earth wire are connected; and the other end of the K3, the other end of the K4 and the negative electrode of the L are connected.