This invention proposes an optimization method for multi-virtual powerplant (VPP) electricity-carbon sharing operation considering ideal returns, comprising the following steps: Step S1, establishing a single VPP model considering electricity-carbon trading among VPPs; Step S2, calculating the bargaining power of each VPP based on ideal returns, and establishing an MVPP asymmetric Nash bargaining model based on ideal returns; Step S3, solving the MVPP asymmetric Nash bargaining model based on ideal returns in two steps using the ADMM method to obtain the optimal solution. This invention can effectively promote the sharing of electricity and carbon quotas among VPPs.