Subrogationrightis thekeypartof overseas investmentinsurancescheme，whichis different fromcommercialinsurancebythenatureof “Internationallaw”and “PublicLaw”.Compared with subrogation right of commercial insurance，it has more complicated theories such as “Lex Personalis”，“National Treatment”and “Sovereignty Transfer”.Till now，we still have no clear leg-islativemodeonsubrogationrightofoverseas investmentinsurance.Considenngourcurrentsituation，itis bettertoadoptthe U.S.modeofmaking BITs.