The　corrosion　behavior　of　316L　stainless　steel　parts　manufactured　via　selective　laser　melting　(　SLM)　was　investigated　in　this　study.　In　order　to　explain　the　relationship　of　corrosion　resistance　and　surface　quality,　several　examples　were　made　by　SLM　with　different　processing　parameters　(　including　laser　power　and　scanning　speed)　and　potentiodynamic　polarization　curve　were　measured.　The　results　indicated　that　surface　quality　varied　with　different　processing　parameters　and　good　surface　quality　contributed　high　corrosion　resistance.　In　addition,　when　the　laser　power　was　100W　while　scanning　speed　was　1050mm/s,　the　products　possess　high　surface　quality　and　corrosion　resistance　with　corrosion　potential　-198　mV,　corrosion　current　0.556　mu　A.　(C)　2017　Laser　Institute　of　America.