The　corrosion　behavior　of　Ti-6Al-2Zr-1Mo-1V　(TA15)　alloy　fabricated　through　selective　laser　melting　(SLM)　technology　and　traditional　wrought　technology　in　hydrochloric　acid　solutions　was　investigated　using　electrochemical　testing　and　surface　characterizations,　including　electron　backscattered　diffraction,　scanning　electron　microscopy,　and　X-ray　photoelectron　spectroscopy　analyses.　The　results　showed　that　both　types　of　TA15　alloy　underwent　spontaneous　passivation　reactions　in　HCl　solution,　and　with　the　increase　in　HCl　concentration,　the　surface　of　SLM-TA15　sample　exhibited　larger　and　deeper　pits.　In　comparison　to　SLM-TA15　sample,　the　pits　on　the　wrought-TA15　sample　were　shallower　and　the　surface　was　more　uniform.　Analysis　of　the　passive　current　density,　breakdown　potential,　and　electrochemical　impedance　revealed　that　the　corrosion　resistance　of　both　alloys　decreased　as　the　concentration　of　HCl　increased,　and　SLM　sample　exhibited　poorer　corrosion　resistance　compared　with　the　wrought　sample.　Analysis　of　Mott-Schottky　test　curves　and　calculation　of　passive　film　thickness　indicated　that　the　passive　film　of　wrought-TA15　sample　was　superior　to　that　of　SLM-TA15　sample.