Evaporation　has　been　one　of　the　most　classic　desalination　processes　on　the　Earth.　When　we　try　to　use　the　power　of　water　flow　itself,　the　evaporation　process　can　perform　even　better.　Here,　we　report　a　hydrodynamic　solardriven　interfacial　evaporation　process　which　water　evaporation　rate　can　achieve　6.58　kg　&　sdot;m(-2)&　sdot;h(-1)　(over　100　times　higher　than　natural　evaporation).　A　waterwheel-structure　solar　interfacial　evaporator　was　designed　and　assembled　by　printed　filter　papers.　The　evaporator　can　both　rapidly　distribute　solution　on　the　evaporation　interface　and　be　hydraulically　driven　to　rotate　continuously　to　improve　the　evaporation　rate　by　water　flow.　The　hydrodynamic　solar-driven　interfacial　evaporation　process　successfully　overcomes　the　problem　of　slow　diffusion　of　water　vapor,　but　also　realizes　the　day-and-night　operation　of　process　and　the　self-cleaning　of　salt　fouling.　Apart　from　the　application　in　solar　desalination,　the　developed　evaporator　has　great　potentials　in　vapor　production　and　salt　recovery　for　industrial　use.