Dispatching　model　of　a　regional　integrated　energy　system　combined　with　enhanced　vapor　injection　(EVI)　air　source　heat　pump　(ASHP)　and　renewable　energy　is　developed　and　optimized.　The　energy　efficiency　of　ASHP　integrated　with　EVI　is　8.1942.26%　higher　than　that　of　traditional　heat　pump.　The　summer　cooling　load　performs　a　variation　trend　of　＇convex＇　shape　and　achieves　a　maximum　of　810kW　at　10:00.　In　contrast,　the　changing　tendency　of　winter　heating　load　shows　a　＇concave＇　shape.　The　electrical　load　obtains　a　peak　valley　characteristic.　Solar　energy　can　satisfy　the　energy　requirement　of　the　users　in　summer.　Meanwhile,　the　proportion　of　solar　energy　supply　to　users　gradually　increased,　ranging　from　28.13%　to　86.41　%　at　7:0010:00　and　11:0014:00.　Furthermore,　electricity　from　the　grid　network　is　required　to　meet　requirement　of　users　in　winter.　©　2023　IEEE.