Provided are a control method and a control device for an energy storage inverter off-grid parallel system. The control method includes: controlling a primary energy storage inverter to operate at a given operating current value; detecting a DC voltage value of the primary energy storage inverter and a DC voltage value of a secondary energy storage inverter; determining an operating current value of the secondary energy storage inverter based on the operating current value of the primary energy storage inverter and a difference between the DC voltage value of the primary energy storage inverter and the DC voltage value of the secondary energy storage inverter; and controlling the secondary energy storage inverter to operate at the determined operating current value. Figure 2
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