In　this　study,　an　innovative　system　is　presented　to　co-generate　water　and　cooling　energy　on　the　base　of　seawater　evaporation.　Salt-free　vapor　can　be　separated　from　the　seawater　through　the　evaporation　process,　meanwhile,　seawater　evaporated　under　low　pressure　can　provide　cooling　energy.　The　compressor　is　employed　to　create　a　low-pressure　environment　for　seawater,　and　the　compression　heat　is　recovered　by　a　multi-effect　desalination　subsystem　to　produce　freshwater.　A　comprehensive　comparison　is　conducted　between　this　system　and　conventional　systems,　considering　thermodynamic,　economic,　and　environmental　aspects.　Meanwhile,　the　exergoeconomic　analysis　was　conducted　for　the　proposed　system.　The　calculation　results　indicate　that　the　specific　energy　consumption　of　the　proposed　system　is　19.77　kWh/t,　which　is　4.53　kWh/t　lower　than　that　of　the　conventional　system　(23.76　kWh/t).　Additionally,　higher　gain　output　ratio　and　performance　ratio　can　be　achieved.　The　proposed　system　has　a　payback　period　of　4.24　years,　which　is　shorter　than　the　6.21　years　required　by　the　conventional　system,　thereby　demonstrating　a　greater　economic　advantage.　For　the　environmental　performance,　the　proposed　system　demonstrates　a　reduced　CO2　emission　of　only　12.55　kg/$,　indicating　a　significant　decrease　of　40.29%　compared　to　the　conventional　system＇s　21.02　kg/$.　Therefore,　the　proposed　system　demonstrates　improved　economic　and　environmental　performance.