The invention belongs to the field of power electronic equipment control, and particularly relates to a capacitive current-based seamless switching control strategy for a micro-grid converter. A capacitive current ring is added on the basis of an inductive current control ring of the micro-grid converter, wherein the capacitive current ring comprises a current amplitude limiter; when the converter is in grid-connected operation, the current amplitude limiter does not work; the inductive current control ring controls the converter into a current source; when islanding is generated, the capacitive current suddenly changes, passes through the amplitude limiter and is compared with a capacitive current value to generate a difference value; the difference value generates an inductive current instruction through a PI adjuster; andpoint of common coupling voltage is ensured by changing the inductive current, so that seamless switching between a grid-connected operation mode and an isolated network operation mode of the PCC voltage is realized. Switching is carried out by direct current control; and from the simulation result, good smooth transition of the PCC voltage in unintentional islanding can be seen.