Under　the　guidance　of　the　dual-carbon　target,the　high-proportion　distributed　power　access　power　distribution　system　faces　significant　challenges　in　low-carbon　and　economic　operation.　Existing　source-load-storage　coordinated　planning　in　power　distribution　systems　emphasizes　economic　operation.　This　article　proposes　a　decarbonization　and　economic　operation　strategy　method　for　new　power　distribution　system.Firstly,　targeting　the　operational　characteristics　of　wind-solar-load-storage　units　in　the　new　power　distribution　system,　individual　unit　models　are　constructed.　Secondly,　a　dual-layer　decision-making　model　for　energy　storage　device　siting　and　capacity　setting　and　day-ahead　optimized　operation　is　built　to　reconcile　the　conflict　between　decarbonization　responsibilities　and　economic　operation　in　the　system.　Finally,　to　address　the　high-dimensional,　multi-constraint　optimization　problem　of　economic　operation　in　the　new　power　distribution　system,　considering　carbon　trading　costs,　an　improved　particle　swarm　algorithm　is　used　to　solve　the　dual-layer　optimization　models.　The　effectiveness　of　the　proposed　optimization　configuration　strategy　method　in　reducing　system　line　losses,　enhancing　economic　and　decarbonization　operations　is　validated　through　IEEE　standard　node　examples.　©　The　Author(s),　under　exclusive　license　to　Springer　Nature　Singapore　Pte　Ltd.　2025.