In　view　of　the　complexity　in　soil　environment　caused　by　long　distance　transportation　of　oil　and　gas　pipelines,　corrosion　problem　from　hydrogen　has　received　increasing　attention.　The　corrosion　behaviors　of　X65　pipeline　steel　after　electrochemical　hydrogen　charging　with　different　times　in　four　simulated　soil　solutions　(in　Geermu,　Dagang,　Daqing,　and　Lasa)　were　investigated　using　the　polarization　test　and　electrochemical　impedance　spectroscopy　(EIS)　measurement.　Results　show　that　the　open　circuit　potential　(OCP)　of　X65　decreases　with　prolonging　charging　time　in　a　type　of　solution.　The　polarization　curves　in　the　four　solutions　show　that　X65　with　different　charging　times　presents　similar　electrochemical　behavior,　which　is　active　in　both　the　anode　and　the　cathode.　The　smaller　the　corrosion　current　density　is,　the　slower　corrosion　rate　is.　EIS　spectra　indicates　that　the　ranking　of　charge　transfer　resistance　from　the　biggest　is　Geermu,　Dagang,　Daqing　and　Lasa.　It　is　consistent　with　the　analysis　results　of　polarization　curves.　©,　2015,　Beijing　University　of　Technology.　All　right　reserved.