The　stable　superhydrophobic　surface　of　the　ZrO2　substrate　could　be　conveniently　and　rapidly　prepared　by　KrF　laser　irradiation.　With　different　laser　energy　density,　the　static　water　contact　angle　(CA)　increased　from　72　degrees　to　approximately　151　degrees.　It　was　found　that　the　formation　of　micronano　fluctuant　geometry　surface　structure　was　the　dominant　factor　to　the　hydrophobic　property　after　laser　irradiation.　When　the　laser-irradiated　sample　annealed　at　O2　atmosphere,　formation　of　oxygen-related　defects　with　high　surface　free　energy　could　make　the　CA　decrease　abruptly　at　the　beginning.　After　being　stored　at　ambient　atmosphere,　the　CA　would　reconvert　to　the　value　of　the　freshly　irradiated　sample　gradually.　Copyright　(c)　2012　John　Wiley　&　Sons,　Ltd.