The environment for oil and gas exploration will be harsher with the constant exploration of oil and gas field. There are challenges such as high temperature (HT), high pressure (HP) and high H2S.Tubing string for HTHP sour wells will be subject to impacts from production conditions with HT, HP, H2S, CO2, high Cl—, S, and acidizing condition with low pH, and packer fluid service with bromide.So, conventional carbon steel, low alloy steel and stainless steel fail to meet the above conditions.Titanium alloys, characterized by high specific strength, low elastic modulus, isotropy and excellent corrosion resistance, are one of the promising candidate.There are 100 kinds of titanium alloys now by their material designations,which were applied first totheaerospace field and not used forthepetroleum industry until the1980s.However, the research for titanium alloys was not initiated domestically for oil and gas field until 2010s in China.So the corrosion information of titanium alloys for HTHP sour service are very insufficient.In this paper, the existing test results of titanium alloys published in the last 3 decades are summarized, and recommendation of titanium alloys for HTHP sour service are proposed as well according to research achievements.It is a good reference for the application of titanium alloys to HTHP sour oil and gas field.