An alternating current (AC)-side symmetrically-split single-phase inverter for decoupling, which includes an H-bridge inverter, the H-bridge inverter includes an upper half-bridge structure and a lower half-bridge structure that are symmetrical to each other, the upper half-bridge structure includes an upper half-bridge first unit and an upper half-bridge second unit in parallel, the upper half-bridge first unit includes an insulated-gate bipolar transistor G1, a diode D1, and a capacitor C3 in parallel, the upper half-bridge second unit includes an insulated-gate bipolar transistor G3, a diode D3, and a capacitor C4 in parallel; and the lower half-bridge structure includes a lower half-bridge first unit and a lower half-bridge second unit in parallel, the lower half-bridge first unit includes an insulated-gate bipolar transistor G2, a diode D2, and a capacitor C1 in parallel, the lower half-bridge second unit includes an insulated-gate bipolar transistor G4, a diode D4, and a capacitor C2 in parallel.