The invention discloses a construction method for an island microgrid group energy scheduling model. The method comprises the following steps: S1, acquiring a flexibility demand parameter and a flexibility supply parameter and establishing an insufficient flexibility risk index based on the flexibility demand parameter and the flexibility supply parameter; S2, on the basis of a multi-agent system,establishing microgrid-cluster double-layer energy management architecture; S3, introducing the insufficient flexibility risk index established in the S1 based on the microgrid-cluster double-layer energy management architecture established in the S2 and constructing an island microgrid group energy scheduling model by taking operating cost minimization, insufficient flexibility risk minimization, and flexibility resource invoking cost minimization as microgrid autonomous operation objectives. According to the invention, the economic benefit maximization can be realized when the constructed model is used for energy scheduling by fully considering influences of cooperative operation of a microgrid group system composed of different benefit bodies and renewable energy uncertainty on systemoperation.