Under　the　background　of　power　market　and　low-carbon　economy,　in　order　to　enhance　the　space-time　complementarity　between　new　energy　power　stations　and　improve　the　utilization　rate　of　self-contained　energy　storage,　the　joint　optimal　operation　and　bidding　strategy　model　of　wind-solar　reservoir　group　considering　energy　storage　sharing　is　established.　Firstly,　based　on　the　complementary　characteristics　of　new　energy　power　stations,　the　joint　operation　mechanism　of　wind-solar　reservoirs　considering　energy　storage　sharing　is　designed,　and　the　cooperative　operation　mechanism　of　wind-solar　reservoirs　is　analyzed.　Secondly,　considering　the　market　means　to　promote　new　energy　consumption,　the　market　revenue　model　of　wind　and　solar　power　stations　participating　in　the　day-ahead　energy　market,　self-contained　energy　storage　and　shared　energy　storage　providing　balanced　fluctuation　reserve　capacity　is　established.　On　this　basis,　considering　the　uncertainty　of　electricity　price　and　wind-solar　output,　a　joint　bidding　strategy　for　wind-solar　reservoir　group　is　proposed　to　maximize　the　benefits　of　wind-solar　reservoir　group.　Finally,　the　improved　particle　swarm　optimization　algorithm　is　used　to　solve　the　joint　bidding　and　cooperative　operation　model.　The　simulation　results　show　that　the　strategy　proposed　in　this　paper　can　effectively　improve　the　utilization　rate　of　self-provided　energy　storage,　increase　the　income　of　wind-solar　storage　group,　and　play　a　positive　role　in　the　market　consumption　of　new　energy.　©　2023　Authors.　All　rights　reserved.