A　super-hydrophilic　surface　was　prepared　on　the　molybdenum　substrate　via　a　hydrothermal　method.　The　scanning　electron　microscope　(SEM)　images　show　that　many　crystal　grains　with　the　size　of　about　a　hundred　nanometers　grown　on　the　surface,　which　look　like　the　seeds　on　the　strawberry　surface.　The　analysis　by　energy　dispersive　spectrometer　(EDS)　and　X-ray　diffraction　(XRD)　proves　that　the　seeds　are　MoO2　crystals.　The　results　of　wetting　test　reveal　that　the　water　contact　angle　is　nearly　0　degrees　and　the　super-hydrophilicity　can　stably　keep　for　more　than　105　days.　The　mechanism　of　the　super-hydrophilicity　was　discussed　according　to　the　Wenzel　theory.　(C)　2012　Elsevier　B.V.　All　rights　reserved.