The　periodic　ripple　structures　with　micro-　and　nano-scales　on　the　metal　surface　are　fabricated　experimentally　by　using　an　oblique　incident　linear　polarized　femtosecond　laser　pulses　with　800nm　wavelength.　The　structuring　features　show　a　material　difference　in　the　s-　and　p-polarized　laser　irradiations.　Besides　the　ripples　are　perpendicular　to　the　polarized　direction　of　applied　laser,　in　the　p-polarized　laser　irradiation　the　interspace　between　ripples　increases　with　the　incident　angle　when　it　exceeds　a　threshold　angle,　and　differently　the　interspace　is　unaltered　with　the　incident　angle　in　the　s-polarized　laser　irradiation.　Especially,　when　the　incident　angle　is　larger　than　the　threshold　angle,　the　spacial　structured　cycle　(SSC)　is　larger　than　the　wavelength　of　incident　lase.　Meanwhile,　with　the　incident　fluence　increasing,　the　threshold　is　become　small.