Supply chain optimization method and system based on overlapping alliance and shared carbon quota

The invention discloses a supply chain optimization method and system based on an overlap alliance and a shared carbon quota, and relates to the technical field of low-carbon supply chains, and the method comprises the steps: obtaining a manufacturer, an integrator and a part type set, and constructing a supply chain optimization model of the shared carbon quota; constructing a utility function based on the production cost of the manufacturer; formalizing the alliance total utility maximization problem under the manufacturer part yield constraint, the carbon quota constraint and the integrator part demand quantity constraint; constructing a new utility function according to the alliance mutual benefit preference sequence; and calling a supply chain cooperative game algorithm of a shared carbon quota, converging the alliance structure to an optimal solution of a maximization problem, and realizing the maximization of the total utility of the alliance. Under the condition that the manufacturer part yield constr