The　pipeline　steel　X80　after　electrochemical　hydrogen　charging　with　different　time　in　four　simulated　soil　solutions　(Geermu,　Dagang,　Daqing　and　Lasa)　was　investigated　using　the　polarization　test　and　electrochemical　impedance　spectroscopy　(EIS)　measurement.　Polarization　test　results　show　that　high-strength　steel　X80　with　different　charging　time　presents　similar　electrochemical　behaviors,　which　is　active　in　both　the　anode　and　the　cathode.　With　the　increase　of　charging　time,　the　corrosion　potential　decreases　and　corrosion　current　density　increases　in　the　same　simulated　soil　solution.　The　rank　of　charge　transfer　resistance　from　the　lowest　to　the　highest　is　Geermu,　Dagang,　Daqing　and　Lasa　at　the　same　hydrogen　charging　time.　The　maximum　electrical　conductivity　of　soil　solution　leads　to　the　highest　corrosion　rate　of　X80　steel　in　Geermu　simulated　soil　solution.　©,　2015,　University　of　Petroleum,　China.　All　right　reserved.